T46G/T48G no Ringtone because of 183 insted of ringing

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Threaded Mode \| Linear Mode T46G/T48G no Ringtone because of 183 insted of ringing
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eurix

Junior Member

Posts: 2

Joined: Apr 2021

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Post: #1

T46G/T48G no Ringtone because of 183 insted of ringing

Hi,
a customer has a lot of T48G an T46G an a Innovaphone phone system with a SIP Trunk from german Telekom.
The problem is that the caller doesn't get a "ringback-tone" when the phone is alerting.. and this happens only with some german mobileproviders.

On a incomming call, the phone sends every time a 183 SessionProgress with SDP and 1/10seconds later a ringing.

It seems that some german providers hava a problem with that signalling!

Is it possible to disable the 183 EarlyMedia? because wir do not need that!

T48G Version
Firmware Version 35.83.0.120
Hardware Version 35.1.0.0.0.0.0

Thanks!

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04-07-2021 05:13 PM

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T46G/T48G no Ringtone because of 183 insted of ringing - eurix - 04-07-2021 05:13 PM

RE: T46G/T48G no Ringtone because of 183 insted of ringing - complex1 - 04-07-2021, 09:02 PM

RE: T46G/T48G no Ringtone because of 183 insted of ringing - eurix - 04-09-2021, 05:16 PM

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