This guide explains how to set up the Snom D3XX and Snom D7XX Series IP handsets to connect to the SureVoIP Single User and Hosted VoIP service.
These instructions apply to:
Snom 300
Snom 320
Snom D305
Snom D315
Snom D345
Snom D375
Snom D710
Snom D712
Snom D715
Snom D725
Snom D745
Snom D765
Snom D785
Other Snom handsets, such as the Snom D7XX Series and Snom 800 Series, should apply but vary slightly. Please consult your model's documentation.
See the Snom D3XX Series and Snom D7XX Series official website for further information on these handsets.
If your phone is not registering, or you are not able to make calls, check the User account, password and SIP server settings.
Ensure
SIP ALG is disabled on your router. See
this page for further information.
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Is your time correct? Check Advanced → Network → NTP Time Server (under Time) and if it is empty enter 0.uk.pool.ntp.org or use your company's time server. Don't forget to set the correct timezone.
If calls are dropping after a certain amount of time (for example, every 15 minutes) then try disabling the SIP Session Timer (s) - this can be found under Advanced → SIP/RTP.
If you are unable to receive calls intermittently then increase the Keepalive interval (seconds) frequency (lower number). For example, set this to 30.
This setting can be found under Identity 1 → NAT (or use the relevant identity for your set up).
If you have tried the above and are still having trouble then try a different broadband router. We strongly recommend you use a business-grade router.
Contact us if you would like a quote for a suitable business-grade router.
If you are still not able to connect, contact SureVoIP Technical Support.