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By WelshPaul
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Below you will find the settings and their values required to optimise your phone for the Voipfone service when using firmware version 10.1.xx.xx.

  1. Voipfone recommend version 8.4.35 for Snom 3xx / D3x5 phones and version for Snom 7xx / D7x0 phones.
    • While one can simply run the Voipfone setup wizard found here, there are some caveats. The phone should be running one of the older firmware versions recommended by Voipfone and their setup wizard prevents you making subsequent changes to some of the options within the phone’s GUI. Why is that a problem? Well, if you're using the phone with multiple SIP providers you may need to make a change or two to some of those settings that Voipfone have restricted. Doing it yourself and there will be no GUI advertisements, no configuration restrictions and your modified dial plan won't get deleted.
  2. I highly recommend that you jump to the Setup ---> Advanced ---> Update section located at the bottom of this post and apply those changes first. Failing to do this first may cause any changes you make along the way to revert back the their factory defaults.

Snom Voipfone Configuration:
  • Setup ---> Preferences ---> General
    • General Information:-
      • Emergency Numbers: 112 999
    • Privacy Settings:-
      • Allow keyboard locking: off
    Setup ---> Preferences ---> Appearance
    • Interface Elements:-
      • Number Display Style: Name + Number
      • U.S. Dialnumber Format: off
      • U.S. Date Format (mm/dd): off
      • Ringer Animation: off
    Setup ---> Identity 1 ---> Login
    • Login Information:-
      • Identity active: on
      • Displayname: ***Enter anything you want here, your name for example***
      • Account: ***Enter your Voipfone user id here***
      • Password: ***Enter your password here***
      • Registrar:
      • Mailbox: 1571 ***If you're using extensions, enter 1572 as the mailbox number***
    Setup ---> Identity 1 ---> SIP
    • SIP Identity Settings:-
      • Dial-Plan String: ***See this thread: Voipfone UK Snom Dial Plan***
      • Proposed Expiry: 60
      • Long SIP-Contact (RFC3840): off
      • Support broken Registrar: on
      • Publish Presence on bootup: off
      • Call Waiting Indication: visual only
    Setup ---> Identity 1 ---> RTP
    • RTP Identity Settings:-
      • Codec: pcma,g726-32,gsm,telephone-event
      • Symmetrical RTP: off
      • RTP Encryption: off
      • Dynamic G.726 payload: off
    Setup ---> Advanced ---> Network
    • Network:-
      • Options on DHCP=on: 1 3 12 15 43 51 66 67 120 125 132 133
    • DNS:-
      • DNS Server 1:
      • DNS Server 2:
    • Time:-
    • NTP Server:
    • NTP Refresh Time (s): 1800
    • Timezone: 0 United Kingdom (London)
    • HTTP:-
      • Auto Logout (min): 60
    • Ethernet Ports:-
      • Detect Ethernet Cable Unplug: No
      • Action on Ethernet cable replug: Ignore
    Setup ---> Advanced ---> Behavior
    • Phone Behavior:-
      • Block URL Dialing: on
      • Challenge Response on Phone: off
      • Call Join on Transfer: always
      • Allow Incoming Call Redirection Through Programmable Keys: off
      • Max. Bootup Delay (s): 2
      • Auto Dial Timeout: 10
    • Keys:-
      • Return to idle screen on offhook: on
    • Logon/Logoff:-
      • Logon Wizard: off
    Setup ---> Advanced ---> Audio
    • Audio:-
      • Dialtone during Hold: off
    Setup ---> Advanced ---> SIP/RTP
    • SIP:-
      • Retry interval after failed registration (s): 70
      • Use user=phone: off
      • Offer GRUU: off
    Setup ---> Advanced ---> QoS/Security
    • IEEE 802.1X Authentication:-
      • Ignore security advices: on
      • Allow CSTA control: off
      • Filter Packets from Registrar: off
    Setup ---> Advanced ---> Update
    • Update:-
      • Update Policy: Never update, do not load settings
      • PnP Config: off
Now reboot your phone!

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