Codecs Page 297 of 910
IP Line Description, Installation and Maintenance

Codec sorting

Before sending a codec list in FastStart and TCS messages, the codec list
must be sorted according to the BB or BQ policy. This is determined by the
following:
• the zone configuration of the IP Phone/DSP involved in the call
• the zone configuration of the virtual trunk used for the call
Codec sorting methods
There are two methods for sorting the codec list:
1BQ sorting – the codec list is sorted so that the first codec in the list is the
best BQ codec, the second codec is the second best BQ codec in the list,
and so on.
2BB sorting – the codec list is sorted so that the first codec in the list is the
best BB codec, the second codec is the second best BB codec in the list,
and so on.