[Serusers] xten and Mitel 5055

Mario Kolberg mko at cs.stir.ac.uk
Thu Dec 4 15:57:56 CET 2003


Hi,

apologies for using this email list for something which is not directly 
linked to ser.

I'm having a weird problem when setting up a voice connection between an 
Xten X-Lite UA and a Mitel 5055 SIP phone (connected via a ser proxy 
server). The session initiation is all fine, but the media session is 
not - the voice transmitted sounds a bit like a robot and is impossible 
to understand. I assumed this is a codec problem but strangly this 
problem ONLY occurs between the Xten UA and the Mitel phone. It does not 
occur between Xten and a Pingtel phone nor between Mitel 5055 and 
Pingtel, nor between Ubiquity UA and Mitel 5055. As far as I know all 
use the G711 codec.

Has anybody experienced this problem also?

Thank you for your help.
Mario Kolberg



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