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📞 Connecting a Provider Number

🇮🇪 Ireland: SIP providers and number connection

Where to get a number with a SIP trunk in Ireland, which parameters providers issue and what to enter in the admin panel so the number rings in the PBX

Documentation

Ireland: SIP providers and connecting a number to the PBX

This page continues the general guide to connecting a provider's number to the PBX: that page covers what is the same for every carrier — the two trunk modes, what to ask the provider, what to enter in the form, network requirements and how to test the link. Here is the Irish part: who sells a number with a SIP trunk in the country, what that carrier issues and what of it goes into Telephony → "Trunks and connections" → "Add provider".

The data was collected on 9 September 2026 from carrier websites, materials of the regulator ComReg and published PBX vendor certifications (Yeastar, 3CX); links are in the "Sources" section.

In short#

  • You can buy a number with a SIP trunk in Ireland, and no licence is needed for it. The service is provided by an Irish carrier, and it is the carrier — not you — who notifies the regulator (ComReg) of its activity. The venue simply buys a number and a trunk.
  • Almost nobody in Ireland publishes trunk parameters. The host, the port and the channel count arrive by email or appear in the provider's portal after ordering. What is public is the authorization mode and codecs of six providers, listed in the certifications of Yeastar (Speechpath, in2tel, Byphone, Telxi) and 3CX (NTES, Colt) — and all of them are registration-based (REGISTER), exactly our standard mode.
  • The fastest providers to connect are VoIPLine Telecom and Speechpath. VoIPLine is the only one with a public price and self-service: €1 per channel per month, an Irish local number for €2.40, a 30-day trial. Speechpath is a Dublin carrier with its own SBCs and its own ComReg number blocks, and the only local one that explicitly states both modes: IP authentication and registration.
  • The main local pitfall is registration pinned to an IP address. That is the Irish habit: even the 3CX documentation for NTES says explicitly that a cloud PBX has to ask the provider to allow the trunk to register. Send the static IP of our dedicated PBX (the "Server" tab) to the provider in advance, before the first link test.
  • A spoofed Irish CallerID is blocked in the network. Since 2022 ComReg has been running a programme that blocks calls from abroad presenting Irish fixed (01-xx) and mobile (087-xx) numbers. In the "Present as" rule, use only numbers from your own contract.
  • Blueface is no longer a provider. The Irish VoIP pioneer (later Comcast Business) stopped providing business telephony on 22 October 2024, and ComReg notified its customers separately. It still shows up in old guides and third-party comparisons — do not waste time on it.

Numbers in Ireland#

  • Country code — +353. National dialling uses a leading zero (01 437 0969), international is 00 + country code, emergency numbers are three digits: 112 and 999.
  • Length. The national significant number (without the zero) is usually 9 digits: Dublin 1 + 7 digits (+353 1 437 0969), Cork 21 + 7, mobiles 83/85/86/87/89 + 7. In some of the older four-digit area codes (0505, 0402…) the subscriber part is shorter — 5–6 digits.
  • Ranges: 01–09x — geographic (01 Dublin, 021 Cork, 061 Limerick, 091 Galway, 051 Waterford); 083/085/086/087/089 — mobile; 1800 — freephone; 0818 — shared cost (ComReg moved the former 1850/1890 here); 15xx — premium rate. Irish 1800 and 0818 numbers are sold at retail — at VoIPLine, for example, they are separate menu items.
  • How the number arrives. Trunk carriers expect and send the number in international format without the "+": in the 3CX documentation the main NTES trunk number is written as 35314370969 (the Dublin 01 437 0969), and for Colt it is "as E164". Hosted platforms put a SIP login in the call instead of the number (that is what Goldfish does).

In the "Lines" tab the number can be entered in any format: the PBX matches the last seven digits. In Ireland those seven digits are exactly the subscriber part, and the area code is dropped:

The lines 01 430 0737 (Dublin) and 021 430 0737 (Cork) are indistinguishable to the PBX — the whole tail matches. For a chain of venues this is worth checking every time a line is added: two numbers with the same last seven digits on one trunk will send the call to the wrong place.

Who sells a number with a SIP trunk#

Provider Numbers Trunk for your own PBX Mode How to order Note
Speechpath Irish geographic, 1800, international yes, "SIP Trunk" REGISTER or by IP online trunk store on the website own SBCs and ComReg number blocks; porting ~1 day
VoIPLine Telecom Irish geographic, 1800, 0818 yes, "SIP Trunking" REGISTER (a no-registration mode also exists) self-service, 30-day trial public price: €1/channel, number €2.40/month
in2tel Irish and British yes, wholesale and retail REGISTER request to the sales team Yeastar-certified; codecs a-law and G.729a
Byphone Irish, British yes, "fully managed SIP trunks" REGISTER via a partner or on request mostly sold through the partner network
Telxi 100+ countries, Ireland included yes, self-service REGISTER sign-up on the site, document checks trunk issued instantly, pay as you go
NTES Irish geographic yes, trunk for your own PBX REGISTER, registration pinned to an IP via the sales team the only 3CX preferred provider for Ireland
Goldfish Telecoms Irish, British, international no trunk; the number works as a SIP account REGISTER to sbc.goldfish.ie:8060 online, per-user pricing the only one publishing a host and a port
IP Telecom Irish geographic, number porting yes, "SIP Trunks" for your own IP PBX to be confirmed with the carrier "Build Your Quote" or the sales team no setup fee, no subscription, pay as you use
NUACOM Irish geographic and mobile no, extensions of their hosted PBX only REGISTER (extension credentials) online, monthly signalling comes from 185.87.180.0/22
Magnet+ (Magnet Networks) Irish geographic yes, "Magnet SIP Trunks" to be confirmed with the carrier quote and contract "encrypted options" advertised — ask about TLS
Viatel Technology Group Irish geographic, non-geographic yes, "SIP Trunks" + SIP Multilink to be confirmed with the carrier via the sales team or a partner enterprise tier, supports SIP OPTIONS
Colt own numbering, Numbers on Demand yes, enterprise SIP Trunking to be confirmed with the carrier enterprise sales, Colt Online portal 3CX "supported"; trunk number in E.164
Vodafone Ireland Irish geographic and mobile yes, "SIP Voice Services" to be confirmed with the carrier via an account manager enterprise tier, often over a dedicated link
Welltel Irish geographic yes, "custom-built SIP Trunks" to be confirmed with the carrier via the sales team site unreachable from our network — terms not verified
eir Business Irish geographic no public page for a trunk to a third-party PBX to be confirmed with the carrier via an account manager former incumbent; owner of the open eir access network
Blueface — no, closed on 22 October 2024 — — operations ceased, ComReg notified customers
DIDWW, Telnyx, Twilio, Zadarma Irish geographic, 1800 yes REGISTER or by IP online, with document checks see "International providers"

The first seven rows are providers whose authorization mode is known in advance (from their own materials or from the Yeastar and 3CX certifications): their cards are below. For the remaining Irish carriers the parameters are issued only under a contract — they have a separate section.

Speechpath#

A Dublin carrier operating since 2009: its own SBCs in three data centres (Ireland and the UK) and its own number blocks as a ComReg-registered operator — numbers are issued instantly. Ordering goes through the online trunk store on their website, and porting an Irish number takes about one business day.

What to enter in the admin panel

Field Value
SIP host the SBC address is issued when the trunk is ordered — the carrier does not document it publicly
Port 5060 — the usual value; take the exact port from the provisioning email
Transport UDP (we have no TLS on trunks anyway)
Registration both modes are offered: ✅ REGISTER (their "Peer Registration") or clear the checkbox and give the provider the static IP of our dedicated PBX (their "IP authentication")
Login the trunk SIP login from your account
Password the trunk password from the same place

What to set up at the provider: order the trunk and the number of channels → choose the mode (credentials or our static IP) → point the purchased or ported number at the trunk → ask for the list of their signalling IP addresses and accept SIP only from them (that is their own requirement to the customer).

Pitfalls ⚠️ Prices, the channel limit and the parameters are visible only inside the store after sign-up — you cannot "just check the tariff" from outside. The codecs in the Yeastar certification are u-law, a-law and G.722, DTMF RFC 2833: that is enough for us, G.729 is not on the list and is not needed.

Source: SIP Trunk · SIP trunking guide · Yeastar — certified providers, Ireland — 09.09.2026.

VoIPLine Telecom#

A carrier running one platform across five countries (Ireland, Australia, New Zealand, the UK, the US), with a self-service portal and a 30-day trial without a contract. The only local provider with a public trunk price: €1 per channel per month, an Irish local number €2.40/month, 2.4 cents per minute to Irish landlines, mobiles and 0818, incoming calls to 1800 free. The trunk is created like this: sign up on the site (an identity document is required) → Services → SIP Trunk → "Add License", pick the plan and the number of channels → in the PBX section drag the "SIP Trunk" object onto the canvas and open its settings.

What to enter in the admin panel

Field Value
SIP host from the "SIP Trunk" object settings → SIP Registration (unique per account)
Port 5060 — the port from their SIP address example; confirm it on the same screen for registration
Transport UDP, unless the provider names another one
Registration ✅ REGISTER — their "Create SIP registration" mode ("connect your external PBX to us")
Login the SIP login from the same trunk settings screen
Password the password from the same place

What to set up at the provider: buy the trunk licence and channels → create the "SIP Trunk" object → drag out the "Inbound Number" object, configure the number and connect it to the trunk object with a line (without that link incoming calls will not flow) → set the time-out and failure routes.

Pitfalls ⚠️ Channels are a shared account pool: until channels are assigned to the trunk, it does not work. Calls with a non-Irish CallerID are charged more (+1.5 cents per minute). The second mode of the trunk object is "Diversion to SIP URI": the provider sends the call to an address like <number>@<our-host>:5060 with no registration at all; that works for incoming calls, but outgoing calls will not go through it.

Source: SIP Trunking (IE) · How to Configure SIP Trunks — 09.09.2026.

in2tel#

An Irish-British carrier: it sells trunks both directly and wholesale to partners ("SIP Trunks — Wholesale & Commercial") and promises up to 50% savings when leaving ISDN. Ordering goes through the sales team; partners get their own portal and billing. Certified by Yeastar for Ireland as a Register Trunk, codecs a-law and G.729a, DTMF RFC 2833.

What to enter in the admin panel

Field Value
SIP host issued at provisioning
Port 5060 — the usual value, confirm at provisioning
Transport UDP, unless the carrier names another one
Registration ✅ REGISTER
Login the trunk credentials from in2tel
Password from the same place

What to set up at the provider: the number of channels → the route from the number to the trunk → the permitted CallerID from your own numbers → ask directly whether registration is pinned to an IP address (in Ireland that is common practice).

Pitfalls ⚠️ Only a-law and G.729a are confirmed among the codecs. We do support a-law, so the pairing works; but a "G.729 only" trunk would leave you with no audio, so get a-law confirmed in writing. The website footer lists a sales contact in the 8x8 domain — before signing, check who currently operates the platform.

Source: in2tel — Wholesale SIP Trunking · Yeastar — Ireland — 09.09.2026.

Byphone#

A communications and UCaaS provider for partners in Ireland, the UK and the US: "fully managed SIP trunks" plus mobile connectivity and IoT. Sales go mostly through the partner network, so the end venue usually receives the parameters from a partner. Certified by Yeastar for Ireland: Register Based, codecs a-law, u-law, G.729a, DTMF RFC 4733 (RFC 2833), fax not supported.

What to enter in the admin panel

Field Value
SIP host issued at provisioning
Port 5060 — the usual value, confirm at provisioning
Transport UDP, unless the carrier names another one
Registration ✅ REGISTER
Login the trunk credentials
Password from the same place

What to set up at the provider: the number of channels → the number pointed at the trunk → the permitted CallerID.

Pitfalls ⚠️ The provider's website is not reachable for our reader (it returns a refusal), so prices, contract terms and document requirements have not been verified — ask the partner in writing. Fax scenarios were not tested in the certification.

Source: Yeastar — Ireland · byphone.ie — 09.09.2026.

Telxi#

An international self-service provider: instant trunk provisioning, pay as you go, numbers in 100+ countries. In the Irish Yeastar list it sits alongside the local carriers: Register Trunk, codecs u-law, a-law, G.722, G.729a and GSM, DTMF RFC 2833 / Info / Inband. Useful when you need an Irish number and cheap international termination in one account.

What to enter in the admin panel

Field Value
SIP host issued in the portal when the trunk is created
Port 5060 — the usual value, confirm in the portal
Transport UDP (they offer TLS as an option, we do not have it on trunks)
Registration ✅ REGISTER
Login the trunk credentials from the portal
Password from the same place

What to set up at the provider: pass the document checks → buy an Irish number and attach it to the trunk → check that the channel limit and the fraud protection do not cut off the first calls.

Pitfalls ⚠️ Verify the availability of Irish numbers specifically by searching in the portal: the site states coverage with the generic "100+ countries" phrase and has no dedicated Irish page.

Source: Telxi — SIP Trunking Europe · Yeastar — Ireland — 09.09.2026.

NTES#

An Irish IT services provider operating since 1999 and the only 3CX preferred provider for Ireland: its trunk template is built into 3CX and tested with every release, which means an ordinary, registration-based trunk with predictable behaviour. There is no online provisioning — you go through the sales team.

What to enter in the admin panel

Field Value
SIP host issued by NTES at provisioning
Port 5060 — the usual value, confirm at provisioning
Transport UDP (TLS is disabled in the 3CX template, no IPv6)
Registration ✅ REGISTER
Login the trunk credentials
Password from the same place

What to set up at the provider: send the static IP of our dedicated PBX and ask them to allow the trunk to register from it → set the main trunk number in international format without the "+" (353…) → point the numbers at the trunk. Anonymous calling and CLIP no screening are supported.

Pitfalls ⚠️ Registration is pinned to an IP address — that is the main reason a trunk "worked and then went silent" after the PBX moved to another machine. The 3CX documentation says it plainly: a cloud installation has to ask NTES to allow registration. If you change the server, warn the carrier in advance.

Source: 3CX — SIP Trunk Providers, Ireland · ntes.com — 09.09.2026.

Goldfish Telecoms#

Dublin-based cloud telephony: Irish, British and international numbers, fax numbers, a call-centre platform. There is no trunk to a third-party PBX on sale, but every number has its own VoIP login and password, and the provider publishes the registration address itself — in its guide for softphones. In practice that gives the path "a Goldfish number → our PBX registers as an ordinary SIP account"; check with their support whether this is allowed for your plan.

What to enter in the admin panel

Field Value
SIP host sbc.goldfish.ie
Port 8060 — non-standard, and the most common cause of "does not register"
Transport UDP
Registration ✅ REGISTER
Login the VoIP Username from the portal: My Goldfish → Your Numbers → the number → "VoIP Settings"
Password the VoIP Password from the same place

What to set up at the provider: buy or port a number (porting is promised "within hours") → take the VoIP credentials of the number → switch off their own forwarding and voicemail so the call reaches our PBX.

Pitfalls ⚠️ The call carries a login, not a number: the PBX cannot match the line by number — the call is accepted as "from this provider" and follows the default routing. With several numbers that is inconvenient; with one number the scheme works. Whether our PBX and their app may register on the same credentials at once is a question for their support.

Source: Goldfish — X-Lite and Bria for Windows · Help Centre — 09.09.2026.

Contract-only carriers and hosted PBX platforms#

These carriers either publish no parameters at all, or their product does not suit our PBX. There is no "what to enter" table here — ask the account manager for the parameters using the list in "What to ask the provider" and enter them in the same form as for everyone else.

IP Telecom#

A Dublin carrier operating since 2010, one of the most visible players in Irish business VoIP. Its "SIP Trunks" product is sold as a replacement for analogue lines, ISDN and E1/T1 for an existing IP PBX: no setup fee, no subscription charge, pay as you use, a flexible number of channels and number porting. Yet not a single technical parameter is published — no host, no port, no codecs, no authorization mode — and the help centre is closed to outside readers.

The first question for the account manager is about the "fully encrypted service" option: if it means TLS/SRTP on the trunk, our PBX will not bring such a trunk up (see "Network and compatibility"). After that comes the usual list: host, port, transport, authorization mode, login and password, codecs (we need G.711 a-law or u-law) and the format of the incoming number.

Magnet+, Viatel, Colt, Vodafone, Welltel, eir, NUACOM and resellers — what is known
  • Magnet+ (Magnet Networks) — "Magnet SIP Trunks" to an existing PBX as an ISDN/E1/T1 replacement, promising up to 80% savings and failure rerouting. Parameters are not published, sales go through a quote and a contract. The advertised "secure, encrypted options" are a reason to ask directly whether the trunk is put on TLS/SRTP by default.
  • Viatel Technology Group — an Irish group with its own network (it absorbed Digiweb): SIP Trunks with SIP Multilink (several trunks in one service) and liveness monitoring via SIP OPTIONS — our PBX sends such checks itself and answers incoming ones, so there is no conflict. The tier is enterprise: minimum volumes and contract terms may be too much for a single venue.
  • Colt — an international carrier listed by 3CX for Ireland as supported: the trunk number is entered in E.164, SIP TLS is disabled in the template, no IPv6. They publish no Asterisk configuration guides, and sales are enterprise. It makes sense for a chain with sites in several EU countries — one contract for all of them.
  • Vodafone Ireland — "SIP Voice Services" (national and Global SIP): an enterprise replacement for traditional voice for the customer's PBX or contact centre, delivered over a dedicated link, over the internet or cloud-to-cloud. Parameters and terms come only with a contract; for a single venue the path is long and expensive.
  • Welltel — an Irish carrier and IT services provider selling custom-built SIP trunks and cloud VoIP. Their website was unreachable from our network, so only the existence of the service is confirmed: parameters, mode and prices have not been verified.
  • eir Business — the former incumbent and owner of the open eir access network. We found no public page for a trunk to a third-party PBX: the business storefront is built around internet and mobile. That is "not confirmed" rather than "definitely not" — ask their sales team. Indirectly eir matters for another reason: open eir is retiring copper (PSTN/ISDN) exchange by exchange with 12–18 months' notice to businesses — and that is what pushes Irish venues to SIP.
  • NUACOM — an Irish cloud PBX that picked up part of the customer base of the closed Blueface. There is no outbound trunk, but the platform accepts "any SIP-compatible phone", so an extension account is technically suitable for registering our PBX (check with them whether your contract allows it). Their knowledge base gives the network parameters: signalling comes from 185.87.180.0/22, SIP is UDP 5060, RTP uses ports 10000–40000, and SIP ALG must be disabled on the router. Their RTP range is wider than ours (10000–20000) — worth looking at if one-way audio is reported.
  • Resellers and integrators — GoldStar Telecom (Cork), Telcom, Cortell, Conversation Piece: their numbers and trunks come from someone else, most often IP Telecom, in2tel or Speechpath. There is no point for a venue in going through them, except when on-site hardware installation is needed.

International providers with Irish numbers#

Several international providers sell Irish numbers; their trunk parameters are the same for all countries — take them from the provider's card in the admin panel catalogue or from the "Add provider" section. Here is only the Irish part:

  • DIDWW is itself an Irish company (the legal entity is registered in Dublin): it has dedicated pages for Dublin +353-1 numbers, Irish toll-free numbers, porting of Irish numbers and a country page of regulatory requirements. For an Irish number with a trunk to our PBX this is the most direct international route.
  • Telnyx appears in the Irish list of Yeastar-certified providers alongside the local carriers: a registration-based trunk, codecs G.711 u-law/a-law, G.722 and G.729, DTMF RFC 2833. Verify the availability of Irish numbers by searching in their portal.
  • Twilio is listed by 3CX for Ireland as supported: the trunk number in E.164, authorization by IP or by credential list, no REGISTER mode. Irish numbers are sold with country document checks.
  • Zadarma, Plivo, Bandwidth, Sinch, Infobip, Vonage — Irish numbers are stated in generic European lists; we found no dedicated Irish page for any of them, so check availability by searching in the portal.
  • Common to all: the blocking of spoofed Irish numbers (see "Rules and paperwork") hits the "call with an Irish number through a foreign provider" scenario. If the venue needs outgoing calls with an Irish number, take the number from an Irish carrier or from a provider that confirms legitimate Irish CallerID presentation in writing.

Number porting#

  • Porting works and it is fast. Speechpath states porting agreements with all Irish and most UK carriers and a "normally 1 day" turnaround for Irish numbers; Goldfish promises porting "within hours"; IP Telecom and in2tel list porting among their basic services.
  • The receiving carrier initiates the port on your request — the standard EU model. The request also terminates the contract with the previous carrier, so there is no need to cancel it separately.
  • Inventory everything hanging off the old line. Irish venues often keep alarms, lifts, franking machines and fax on analogue lines — Speechpath warns about this in its own guide. Move or replace them before switching to SIP.
  • Copper is being switched off exchange by exchange. Ireland has no single "day X" like the UK: open eir retires PSTN/ISDN as fibre arrives, with 12–18 months' notice to businesses. Ask your carrier about the date for your address.
  • What to ask before porting: whether the whole number block moves as a whole, whether 112/999 will go through the new trunk, and whether forwarding and voicemail will survive.

Rules and paperwork#

Regulator, numbers, CallerID spoofing, emergency calls, call recording
  • There is no VoIP licence — there is a notification. The regulator is ComReg. Anyone intending to provide an electronic communications network or service must notify ComReg before starting; work may begin as soon as a complete notification is filed. A venue as a subscriber files nothing — that is the duty of the carrier you buy the trunk from.
  • Numbering is managed by ComReg, and rights of use are granted to carriers under the Numbering Conditions (ComReg 15/136R4). The end customer receives the number from a carrier, not from the regulator.
  • Number spoofing is not merely prohibited — it is blocked in the network. Since 2022 ComReg has run a programme against nuisance communications: blocking of incoming calls from abroad presenting Irish fixed (01-xx) and mobile (087-xx) numbers, a protected list of numbers not yet in service, a Do-Not-Originate list, an SMS sender registry and a voice firewall. Practical conclusion: in the "Present as" rule use only numbers from your own contract, otherwise the call may be cut in transit.
  • Emergency calls are 112 and 999, free of charge, through the national emergency call answering service. Do not treat the PBX as the only route: if the venue loses internet it will not call at all, so a mobile phone on shift is mandatory. Three-digit numbers are not dialled by a generic outbound rule — if you need emergency calls through the trunk specifically, ask support to add a dedicated rule for 112 and 999.
  • Documents for the number. There is no separate state requirement for the subscriber — the provider does the checks. VoIPLine warns during sign-up that an identity document is required to verify the account; international providers publish their requirements per country. We found no public "Irish address required for a local number" rule at any of the checked providers, but it is worth confirming with the carrier before paying.
  • Call recording. Ireland has no separate "telephone" permit: the pan-European data protection rules and the Irish privacy-of-communications rules apply — you need a lawful basis and you must inform the parties. The practice is the same as elsewhere in the EU: a notification phrase at the start of the call, enabled in the location settings of the admin panel.

If it does not work#

Symptom Irish cause What to do
The trunk does not register although the login and password are correct Irish carriers usually pin registration to an IP address; for NTES it is documented explicitly Send the carrier the static IP of our dedicated PBX (the "Server" tab) and ask them to allow registration from it
The trunk worked and went silent after a server change The PBX IP address changed while the carrier's allowlist still holds the old one Warn the carrier about the move in advance; after the change ask them to update the address
Goldfish: "does not register" with correct credentials Their port is non-standard — 8060, not 5060 Enter 8060 in the "Port" field
Goldfish: the call arrives but the line is not matched The call carries the VoIP login instead of the number With a single number this does not matter; for several numbers you need a real trunk from another carrier
The call arrives on the wrong line Two numbers share the last seven digits (01 430 0737 and 021 430 0737) Split such numbers across different trunks or keep a line for only one of them
The call connects but there is one-way audio The carrier offers a codec we do not have (in2tel confirms only a-law and G.729a), or media goes elsewhere Require G.711 a-law or u-law in writing; check the codecs in the provider's portal
An outgoing call with an Irish number does not arrive or shows the wrong number ComReg blocks Irish numbers presented in calls originated abroad In "Present as" use only numbers from your own contract and verify with a live call
The carrier offers an "encrypted service" and the link does not come up The trunk was put on TLS/SRTP (IP Telecom, Magnet+) Ask for an ordinary UDP trunk: our PBX does not support TLS on trunks

Causes that do not depend on the country are in "If calls do not go through"; checking the address and port is in "Test the link"; numbers and rules are in "Add a number and routing" and "Outgoing calls".

Frequently asked questions#

Which carrier should I choose if nothing is connected yet?#

VoIPLine Telecom if speed and a clear price matter most: self-service, a 30-day trial, €1 per channel and €2.40 for an Irish local number. Speechpath if it matters more that the service comes from a carrier with its own SBCs and its own ComReg number blocks: it is the only local one offering both registration and IP authentication, and porting an Irish number to it takes about a day.

Why do the tables say "issued at provisioning" almost everywhere?#

Because Irish carriers do not publish trunk parameters on their websites — they arrive by email or appear in the portal after the order. We will not invent a host and a port: what is known for certain (the authorization mode and the codecs) comes from the Yeastar and 3CX certifications, and the actual server address will be with you minutes after the trunk is ordered.

What is this story about registration pinned to an IP?#

In Ireland it is customary to accept trunk registration only from an address agreed in advance. Our dedicated PBX has a static IP — it is shown on the "Server" tab; give it to the carrier before the first link test. This also explains the most common failure: after the PBX moves to another machine the address changes and the trunk stops registering without a single error message.

Can I use a number from an Irish hosted PBX (Goldfish, NUACOM) instead of a trunk?#

Technically yes: they sell extensions rather than trunks, and our PBX can register as an ordinary SIP account — Goldfish even publishes the host and the port for it. But you will pay their per-user rate, their limits will apply, and the line will not always be matched by number (Goldfish puts a login in the call). For one number it is a workable detour; for a venue with several numbers a real trunk is better.

Sources#

All links checked on 09.09.2026.

Regulator

Carriers

PBX vendor certifications

Documentation
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