Cisco IP Phone 6851

Outbound Call Codec Selection Codes
DescriptionParameter
Makes this codec the preferred codec for the associated call.
Defaults to *017110.
Prefer G711u Code
Makes this codec the only codec that can be used for the
associated call.
Defaults to *027110.
Force G711u Code
Makes this codec the preferred codec for the associated call.
Defaults to *017111
Prefer G711a Code
Makes this codec the only codec that can be used for the
associated call.
Defaults to *027111.
Force G711a Code
Makes this codec the preferred codec for the associated call.
Defaults to *01722.
Only one G.722 call at a time is allowed. If a conference call
is placed, a SIP re-invite message is sent to switch the calls to
narrowband audio.
Prefer G722 Code
Makes this codec the only codec that can be used for the
associated call.
Defaults to *02722.
Only one G.722 call at a time is allowed. If a conference call
is placed, a SIP re-invite message is sent to switch the calls to
narrowband audio.
Force G722 Code
Makes this codec the preferred codec for the associated call.Prefer G722.2 Code
Makes this codec the only codec that can be used for the
associated call.
Force G722.2 Code
Makes this codec the preferred codec for the associated call.
Defaults to *01729.
Prefer G729a Code
Makes this codec the only codec that can be used for the
associated call.
Defaults to *02729.
Force G729a Code
Makes this codec the preferred codec for the associated call.Prefer iLBC Code
Makes this codec the only codec that can be used for the
associated call.
Force iLBC Code
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
179
Cisco IP Phone Web Page