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VoIP Phones - SNOM 3xx

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Snom 3xx Range

ALT=Snom 3xx Snom have a range of phones in their '3' series.

Phones and Versions Tested

SNOM 3xx
Model Version Notes
305
315
345
375

IPv6 support is listed on the specification pages for the 315, the 345 and the 375.

Older models

SNOM 3xx Versions tested
Model Version Notes
320
360 8.7.3.19
360 8.2.35
370 8.4.35
370 8.7.3.19
370 8.7.4.7a
Feature Notes
Supports 302 Redirect Yes
Tested on FireBrick SIP Server Yes
IPv6 Support No

Configuration

Apart from the 'Identity' settings, no additional configuration is required.

See: SNOM Find IP Address if you're unsure how to access the web interface.

SNOM 3xx Identity Settings
Setting Value
Identity active on
Account Your Number +44
Registrar voiceless.aa.net.uk
Outbound Proxy Leave Empty
Authentication Name Your Number +44
Password Your Password
Prioritise PBX number lookup off (see Notes below)
Other Settings As default

Other (possibly) useful settings

  • Turn off Call Waiting, the default is On. - Advanced - Audio - Call Waiting Indication
  • Turn off U.S. date format - In Preferences
  • Turn off Advertisement - In Preferences

Notes

  • Snom did make available IPv6 firmware, but this was buggy and no longer available, and Snom say that IPv6 will not be supported on the 3xx range.
  • Directory Name not being shown? A couple of times we've noticed that the Directory does not display the Name when that number calls in. Try turning off 'prioritise pbx number lookup' - This setting is found on the Snom web pages under Advanced - Behaviour. This setting means the phone will use the Name in the Directory rather than the Name given in the SIP messages when the call is sent to the phone.
  • We have a page about SNOM Firmware Updates

Firewall & Security

Factory Reset SNOM 3xx

Since firmware version 8.7.3.7 on the snom 3xx series it is possible to reset the phone using the key pad by pressing the following key sequence:

* Volume Up * Volume Down #

This is useful if you have lost the admin password or have lost the PIN etc., and this is much easier than the alternative way using TFTP to reset the phone.

Problems setting the time

Setting the time can be a bit tricky. The Snom will overwrite the NTP server with any 'time' option set in DHCP. For example, the FireBrick [by default] will set its own IP as the 'time' over DHCP. This will result in a situation where rebooting the Snom will cause it to overwrite the NTP server with the IP of the FireBrick!

You will need to specify this value manually in the FireBrick. Interestingly, it ignores the 'ntp' option.

If your DHCP server does not have the time option set, then you should have no problems setting the time manually in the Snoms web interface. You will also need to ensure that the DNS servers are set correctly if you are specifying a hostname for NTP.