disconnect after 31 seconds : Helpdesk platform

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Morris Stallings

started a topic almost 2 years ago

Hello and Thanks

Cisco Spa504g at same remote office as snoms below work perfectly.

Snom 320 821 in use at remote office disconnect after 31 seconds.

Both are behind sonicwall firewall.

Both use session border controller to connect to 3cx server.

Both show same error in SBC log no RTP session

This change occurred since upgrading from v14 to v15 of 3cx.

Neither phone was taken to office for provisioning.

Both show provisioned on 3cx console.

Best Answer

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Morris Stallings said almost 2 years ago

after firewall version upgrade; problem resolved

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Matthieu Le Jeune

said almost 2 years ago

Hello Morris,

We will need to investigate more, I converted this topic in a support ticket.

You will be contacted soon for the next steps,

Regards,

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Morris Stallings

said almost 2 years ago

Hi and thanks

Found firewall troubles on my end,

I will be testing phone again soon

M

Morris Stallings

said almost 2 years ago

Answer

after firewall version upgrade; problem resolved

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Michael Moyse

said 7 months ago

I've got the same problem with Snom phones behind a Sonicwall with the latest firmware SonicOS Enhanced 6.5.2.1-31n

The Snom phones which range from 720, 760 to 725s only purchased last month and all on 8.9.3.88 (3CX preferred version) all exhibit the same issue where calls disconnect with "Network Failure"