Recommended CUBE Configuration

The RTP payload mappings used by CUBE are known to cause issues with the solution. The web-gateway uses 126 for RFC 2833 telephone-event whilst CUBE maps that to fax passthrough as shown here. The recommended solution config for CUBE from Cisco is as follows:

In the voice service voip sip section:

asymmetric payload full
midcall-signaling passthru

And in the dial-peers:

video codec h264
rtp payload-type cisco-codec-fax-ack 107
rtp payload-type nte 126
rtp payload-type cisco-codec-video-h264 97
codec g711ulaw
#Specify the payload 13 statically to avoid PayloadNumberException
rtp payload-type comfort-noise 13








 

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