“Media Profile Configuration”的版本间的差异
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2016年1月22日 (五) 15:31的版本
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
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
