查看“Media Profile Configuration”的源代码

Media Profile Configuration
A media profile is a list of attributes which define what audio codecs are used on a per call basis.
It also describes how DTMF (Dual Tone Multiple Frequency) will be handled within the SIP profile

;;;Media profiles are bound to one or more SIP Profiles
Depending on use case:
**User can create one Media profile per SIP profile
**User can create one Media profile for many SIP Profiles.
*SIP profile uses the Media profile information to negotiate SDP information
**Codecs & P-times
**Local RTP ports
http://manula.s3.amazonaws.com/user/1885/img/sbc-media-profile-setup.jpg

Audio Codec
An audio codec is a program implemented as an algorithm that compresses and decompresses digital audio data.
*5 codecs can be configured per media profile.
*10 different codecs to choose from with multiple variations of each codec.

Codecs available:
*G.711 PCMU
*G.711 PCMA
*G.729
*AMR
*iLBC
*GSM
*G.722
*G.722.1
*G.723
*G.726