Sangoma P-Series and D-Series — setup for our PBX

Sangoma is the Canadian company that owns Asterisk and FreePBX; its phones usually arrive at a venue together with a FreePBX or Switchvox server and configure themselves from it at the press of a button. With us it is different: the platform runs no provisioning server of its own, so the phone has to be configured by hand — and this is where the two Sangoma lines behave differently.

• P-Series (P310, P315, P320, P325, P330, P370) — the current handsets. They have a full web interface with a Lines tab where the SIP account is entered field by field. That is what we need, and the whole guide below is about them.
• D-Series (D40, D45, D50, D60, D62, D65, D70, D80) — the previous generation (the Digium heritage). It is designed to be configured from a configuration server: the phone discovers FreePBX/Switchvox over mDNS or receives the server address through DHCP option 66. There is a separate section about that at the end of this page. On top of that, vendor support for the D-Series ended on 1 December 2023.

Shared credentials, network requirements and typical mistakes are on the overview page “Setting up SIP phones”.

What you need#

• A Sangoma phone cabled into the same network as your computer (powered over PoE from the switch, or from a power supply).
• The extension credentials from the admin panel: Admin panel → Telephony → Operators → “Reset password” — the “Extension credentials” window (details).
• A computer with a browser on the same network.
• The phone’s factory administrator password — 789 (username admin). If the phone has already been attached to FreePBX or Switchvox, the password is different: Endpoint Manager sets 222222, Switchvox generates a random one. Then you need a factory reset.

⚠️ A phone already configured from somebody else’s server will not let you into its web interface. The vendor states it plainly: the P-Series web interface is locked once the phone has been provisioned by a Sangoma configuration server, and you will see “Access to this Web User Interface has been disabled”. The only way to unlock it is a factory reset. Bought the phone second-hand? Start with a reset, not with the settings.

Step 1. Find the phone’s IP address#

The phone gets its address over DHCP (and asks for a VLAN over LLDP-MED at the same time).

1. Press the nav button to open the Main Menu.
2. Select About — the screen shows the model, firmware version, MAC address and the IP address.
3. If the phone has no configuration yet, the same screen opens from the About softkey in the Settings menu.

Screenshot: Sangoma P-Series IP Phones User Guide, p. 5.

Step 2. Log in to the web interface#

Open the phone’s address in a browser.

Screenshot: Sangoma P-Series IP Phones User Guide, p. 9.

The web interface only opens on a phone that has not been provisioned by a Sangoma configuration server, or on a phone after a reset. The message “Access to this Web User Interface has been disabled” means exactly that — go to the reset.

Step 3. Enter the PBX credentials#

In the web interface open the Lines tab and select Line 1 (the first line is the primary one and cannot be disabled). Enable this Line must be YES.

Be sure to set Register = YES — without it the phone will not register with the PBX. Leave Alternate Host and SIP Outbound Proxy empty: we have no backup server.

Screenshot: Sangoma P-Series IP Phones User Guide, p. 9.

Press Submit Phone Settings at the bottom of the page — that button saves the changes from all tabs at once.

Step 4. Verify the registration#

• On the phone. The idle screen shows the line label you typed into Line Label on Phone. Until the phone registers, calls will not go through.
• In the admin panel. Admin panel → Telephony → Operators: the operator gets a green dot and the identity string the phone reported (for example Sangoma P325). The status comes from the PBX and refreshes at most once a minute.
• Test call. Dial a colleague’s extension. If the call connects but only one side is audible, the problem is not registration but RTP: check SIP ALG on the router (overview).

Factory reset#

A reset is needed more often on Sangoma phones than on other brands: it not only wipes somebody else’s settings but also unlocks the web interface that the phone closes after being provisioned. A reset cannot be performed during an active call.

P-Series (P310–P370): Main Menu (the nav button) → scroll to the bottom of the list → Factory Reset. The phone clears the whole configuration and reboots; afterwards the web interface opens again with admin / 789.

Screenshot: Sangoma P-Series IP Phones User Guide, p. 8.

D-Series (D40/D45, D60/D65, D70) — through the menu: the More → More → Menu → 5 (Advanced) → 2 (Reset to Factory Defaults) → Yes softkeys.

D-Series — during a restart (if the password is lost): restart the phone and after “step 2 of 8” press and hold the *, 8 and 6 keys simultaneously; release them when the “Resetting to factory defaults and rebooting” message appears.

D80 — during boot: while the Sangoma logo (or the Digium logo on older firmware) and the spinner are on screen, press and hold any three screen corners for 7 seconds. From the idle screen: the menu on the left (or the Menu icon in the top-left corner) → Advanced → Reset to Factory Defaults → Yes.

What is erased: the vendor warns that this removes all existing accounts and contacts as well as the whole phone configuration: server address, lines, network settings, the address of the previous provisioning server. The administrator password goes back to 789.

When you need it: the web interface answers “Access to this Web User Interface has been disabled”; the phone was bought second-hand or taken off somebody else’s FreePBX/Switchvox; the administrator password is lost.

After the reset the phone reboots, picks up an address over DHCP and starts looking for a configuration server again. If there is none in your network it simply stays unconfigured — open the web interface and follow steps 1–3.

If the phone does not register#

1. Register = NO. The most common cause: the credentials are in place but registration on the Lines tab was never switched on.
2. The line is disabled — Enable this Line must be YES.
3. A short number in User ID / Extension. It needs the full login sip-xxxxxxxx-101; Authorization Name repeats it by default.
4. The password is stale. The admin panel shows the password once; if you closed the window, press “Reset password” on the operator and enter the new one.
5. The web interface is locked — the phone lives by somebody else’s server configuration and everything you type gets overwritten. It needs a reset.
6. Transport set to TLS. Primary Host → Transport must be UDP: our PBX does not provide TLS.
7. The phone found another configuration server in the network (a FreePBX in the venue, DHCP option 66 from the previous provider) and restores its settings after every reboot. Remove option 66 from your DHCP server and reset the phone.
8. General network causes — SIP ALG on the router, client isolation on Wi-Fi, blocked ports: see the overview.

D-Series: why you cannot configure it by hand#

For the D-Series (and for the entry-level P310/P315) the Sangoma documentation describes exactly one way to configure the phone — from a configuration server: at boot the phone looks for FreePBX, PBXact, Switchvox or the DPMA module in Asterisk over multicast DNS, or receives the server address through DHCP option 66, and pulls a ready-made configuration file from there. Manual entry of a SIP account through the D-Series web interface is not described in the vendor documentation ⚠️ verify — that web interface serves network settings and diagnostics.

What this means in practice:

• If the venue has its own FreePBX/PBXact, the D-Series phones are configured from it as before — and they will not connect to our PBX at the same time.
• If there is no server of your own, a D-Series phone requires you to run a simple web server holding the phone’s configuration file and hand out its address through DHCP option 66. That is a system administrator’s job, and the vendor states honestly that on a “foreign” PBX such a phone loses its proprietary features and works as an ordinary SIP phone.
• The practical choice for our PBX is a P-Series handset (or any phone with a normal web interface — Yealink, Grandstream, Fanvil), leaving the D-Series where its native server lives. All the more so since vendor support for the D-Series ended on 1 December 2023.

Models in the family#

The S-Series handsets (S305, S405, S505, S705) are rebadged phones from another manufacturer; their factory web password is admin / admin, not 789.

FAQ#

The web interface says “Access to this Web User Interface has been disabled”. What now?#

Nothing is broken: the phone has already taken its configuration from a Sangoma server (FreePBX, PBXact or Switchvox) and locked the web interface. Do a factory reset — after the reboot the web interface opens again with admin / 789.

What is the phone’s password if it was set up through FreePBX?#

Endpoint Manager in FreePBX assigns the password 222222, Switchvox generates a random one and shows it in the admin tool. The factory 789 only comes back after a reset.

Can I connect a D65 or a D80 to your PBX?#

Technically yes — they are ordinary SIP phones, but you will not be able to configure them field by field through the web interface: they need a configuration server. Details are in “D-Series: why you cannot configure it by hand”. For our PBX a P320–P370 or a phone from another brand is simpler.

Does the P-Series need a provisioning server?#

No. Our platform has no provisioning server of its own, and the P-Series (except the P310/P315) configures perfectly well field by field through the web interface. The opposite is a problem: if somebody else’s configuration server or a DHCP option 66 from a previous provider is still around, the phone will pick it up and overwrite your settings — remove option 66.

The phone accepts calls from unknown hosts — how do I close that?#

On the General tab, in the SIP block, choose “SIP Account Hosts”: the phone will only accept calls from servers it is registered with — that is, only from our PBX.

Sources#

• Sangoma P-Series IP Phones User Guide (P310, P315, P320, P325, P330, P370) — https://sangoma.com/wp-content/uploads/P-Series-User-Guide-SECURED.pdf
• Phones — What are the default login and password for a Sangoma phone? (Sangoma knowledge base) — https://sangomakb.atlassian.net/wiki/spaces/Phones/pages/429162611/Phones+-+What+are+the+default+login+and+password+for+a+Sangoma+phone
• Phones — How to Reset Different Sangoma Phone Models to Factory Default — https://sangomakb.atlassian.net/wiki/spaces/Phones/pages/417890305/Phones+-+How+to+Reset+Different+Sangoma+Phone+Models+to+Factory+Default
• Phones — Provisioning, D-Series (mDNS/DPMA, DHCP option 66) — https://sangomakb.atlassian.net/wiki/spaces/Phones/pages/23593101/Phones+-+Provisioning+D-Series
• Phones — D-series FAQs (end of support, 2023-12-01) — https://sangomakb.atlassian.net/wiki/spaces/Phones/pages/1759117313