Voice-only with different codecs

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Voice-only with different codecs

Situation:

Error creating thumbnail: Unable to save thumbnail to destination

Voice-call between 201 (GSM-codec) and 301 (G711u codec)

  • Traffic to and from Ext. 201 is Green
  • Traffic to and from Ext. 301 is Red
  • Traffic between Asterisk-boxes is Blue

Used filters in I/O-graph:

Filter-Black: proto=sip
Filter-Red  : ip.addr == 192.168.1.3   && ip.addr == 192.168.1.106
Filter-Green: ip.addr == 192.168.1.189 && ip.addr == 192.168.1.101
Filter-Blue : ip.addr == 192.168.1.106 && ip.addr == 192.168.1.101
Filter-Pink : ip.addr == 192.168.1.100 && ip.addr == 192.168.1.101
Error creating thumbnail: Unable to save thumbnail to destination

This doe not tell us which Asterisk box makes the conversion between the GSM codec and the G711u codec. Therefore we made another graph with the traffic meassured only in one direction.

Used filters in I/O-graph:

Filter-Black: ip.src == 192.168.1.101 && ip.dst == 192.168.1.106
Filter-Red  : ip.src == 192.168.1.3   && ip.dst == 192.168.1.106
Filter-Green: ip.src == 192.168.1.189 && ip.dst == 192.168.1.101
Filter-Blue : ip.src == 192.168.1.106 && ip.dst == 192.168.1.101
Filter-Pink : ip.src == 192.168.1.100 && ip.dst == 192.168.1.101
Error creating thumbnail: Unable to save thumbnail to destination