Fritz!Box VoIP: Voice transmission fails

Fritz!Box VoIP: Voice transmission fails

Summary

When using a Fritz!Box, the voice transmission via Message Control fails. This has been fixed.

Description

A transmission error occurs with Message Control when using VoIP with an intermediary VoIP server such as the Fritz!Box.

 

Cause:

An intermediary VoIP server can cause voice transmission errors.

 

Solution:

Configure the new parameter provided in zenon6.ini for this purpose.


[MESSAGECONTROL]

VOIP_ALLOW_SDP_NAT_REWRITE=1


This entry controls whether the IP address in the SDP should be replaced by the IP address from the via header of the REGISTER response.

Set this entry to 1.
Message Control will then use the IP address communicated in the via header.

 

To benefit from this fix:

  • Update your zenon Software Platform to the latest build of zenon 8.20 or higher and configure your zenon6.ini accordingly.

 



Item ID: 264622
Version: 11.00 Build: 157700
Version: 10.00 Build: 144352
Version: 8.20 Build: 150600

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