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Durafon SIP phone set cannot make or receive calls behind a Zultys IP PBX.
Durafon SIP phone set cannot make or receive calls behind a Zultys IP PBX.
Updated over a week ago

Situation:

A Durafon SIP phone set is connected to a Zultys MX-SE IP PBX. The status of the handset and SIP number is active on the Account Settings but the handset cannot make and receive calls. The SIP extension name on the IP PBX was alpha-numeric, โ€œdev2โ€, and was the same name input as the SIP number on the Account Settings.


Solution:

Set the SIP extension name on the IP PBX as numeric, โ€œ200โ€, instead of alpha-numeric.

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