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green · 05-18-2008, 11:53 AM

All the FRITZ! devices have a bug in SDP implementation.
As far as I know their support is ignoring customer's complains on this.
Workaround exists with FBEditor tool.

Technically:
Manufacturer is not following RFC3264, specifically this part: "The offerer SHOULD send media according to the value of any ptime and bandwidth attribute in the answer". In fact they are ignoring ptime parameter supplied by the server. As a result customers may enjoy one-way audio.

P.S. and question was about the simple router as an addition to the existing very good SIP device and not about full featured all-in-one device.

05-18-2008, 11:53 AM	#4
green Senior Member Join Date: Jul 2007 Posts: 143 Thanks: 13 Thanked 20 Times in 19 Posts	All the FRITZ! devices have a bug in SDP implementation. As far as I know their support is ignoring customer's complains on this. Workaround exists with FBEditor tool. Technically: Manufacturer is not following RFC3264, specifically this part: "The offerer SHOULD send media according to the value of any ptime and bandwidth attribute in the answer". In fact they are ignoring ptime parameter supplied by the server. As a result customers may enjoy one-way audio. P.S. and question was about the simple router as an addition to the existing very good SIP device and not about full featured all-in-one device. Last edited by green; 05-18-2008 at 12:06 PM.