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Re: [Linphone-users] Call failed to certain numbers

From: Sylvain Berfini
Subject: Re: [Linphone-users] Call failed to certain numbers
Date: Tue, 8 Jan 2019 09:43:30 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

Hi Soko,

Can you attach the logs starting from the INVITE sent to the server at to the moment you have the media description syntax error please ?


Le 08/01/2019 à 09:39, Andi Soko a écrit :
Hey guys,

I have linphone installed and using the a SIP line from

I mainly call customers in Germany and when I call their official/main number "+4935...9926" everything works. But when I call an extension-number to get to a specific person (+4935...9915) I get the following error:

Call failed
Cannot call + +4935...9915
Reason was: Not Acceptable Here
[Media Descriptions Syntax error while parsing the SDP]

When I use another SIP client app (i.e. Zioper) with the same SIP line all numbers are working. But I like linphone interface and would like to use it :)

can anyone give me some hints were to look at or which option to change?


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