Version 6.6
257
Mediant 3000
User's Manual
18. Coders and Profiles
18
Coders and Profiles
This section describes configuration of the coders and SIP profiles parameters.
18.1 Configuring Coders
The Coders page allows you to configure up to 10 voice coders for the device. Each coder
can be configured with packetization time (ptime), bit rate, payload type, and silence
suppression. The first coder configured in the table has the highest priority and is used by
the device whenever possible. If the remote side cannot use the first coder, the device
attempts to use the next coder in the table, and so on.
Notes:
•
A specific coder can only be configured once in the table.
•
If packetization time and/or rate are not specified, the default is applied.
•
Only the packetization time of the first coder in the coder list is declared
in INVITE/200 OK SDP, even if multiple coders are defined.
•
The device always uses the packetization time requested by the remote
side for sending RTP packets. If not specified, the packetization time is
assigned the default value.
•
The value of several fields is hard-coded according to common
standards (e.g., payload type of G.711 U-law is always 0). Other values
can be set dynamically. If no value is specified for a dynamic field, a
default is assigned. If a value is specified for a hard-coded field, the
value is ignored.
•
If silence suppression is not configured for a coder, the settings of the
EnableSilenceCompression parameter is used.
•
Silence suppression is currently not supported for the MS RTA coder.
The bit rate defines the originator bit rate in accordance to the sample
time. The MS-RTA codec can be used in transcoding sessions with the
G.722 wideband codec. In addition, wideband Linear PCM files can be
played on an MS-RTA channel, preserving the file’s wideband quality.
•
The G.722 coder provides Packet Loss Concealment (PLC) capabilities,
ensuring higher voice quality.
•
Both GSM-FR and MS-GSM coders use Payload Type 3. When using
SDP, it isn’t possible to differentiate between the two. Therefore, it is
recommended not to select both coders simultaneously.
•
For G.729, it's also possible to select silence suppression without
adaptations.
•
If G.729 is selected and silence suppression is disabled, the device
includes 'annexb=no' in the SDP of the relevant SIP messages. If silence
suppression is enabled or set to 'Enable w/o Adaptations', 'annexb=yes'
is included. An exception to this logic is when the remote gateway is a
Cisco device (IsCiscoSCEMode).
•
For defining groups of coders, which can be assigned to Tel and IP
Profiles, see 'Configuring Coder Groups' on page
•
For information on V.152 and implementation of T.38 and VBD coders,
see 'Supporting V.152 Implementation' on page
•
The Coders table can also be configured using the table
ini
file
parameter, CodersGroup.
Содержание Mediant 3000
Страница 1: ...User s Manual Version 6 6 Enterprise Session Border Controller VoIP Digital Media Gateway Mediant 3000...
Страница 2: ......
Страница 21: ...Version 6 6 21 Mediant 3000 User s Manual 1 Overview Figure 1 2 Mediant 3000 TP 6310 Functional Block Diagram...
Страница 22: ...User s Manual 22 Document LTRT 89729 Mediant 3000 Figure 1 3 Mediant 3000 TP 8410 Functional Block Diagram...
Страница 26: ...User s Manual 26 Document LTRT 89729 Mediant 3000 Reader s Note...
Страница 27: ...Part I Getting Started with Initial Connectivity...
Страница 28: ......
Страница 40: ...User s Manual 40 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 41: ...Part II Management Tools...
Страница 42: ......
Страница 44: ...User s Manual 44 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 80: ...User s Manual 80 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 98: ...User s Manual 98 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 103: ...Part III General System Settings...
Страница 104: ......
Страница 113: ...Part IV General VoIP Configuration...
Страница 114: ......
Страница 144: ...User s Manual 144 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 164: ...User s Manual 164 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 222: ...User s Manual 222 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 224: ...User s Manual 224 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 275: ...Part V Gateway and IP to IP Application...
Страница 276: ......
Страница 278: ...User s Manual 278 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 399: ...Part VI Session Border Controller Application...
Страница 400: ......
Страница 402: ...User s Manual 402 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 464: ...User s Manual 464 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 465: ...Part VII Stand Alone Survivability Application...
Страница 466: ......
Страница 474: ...User s Manual 474 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 494: ...User s Manual 494 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 497: ...Part VIII IP Media Capabilities...
Страница 498: ......
Страница 501: ...Part IX High Availability System...
Страница 502: ......
Страница 515: ...Part X Maintenance...
Страница 516: ......
Страница 522: ...User s Manual 522 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 524: ...User s Manual 524 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 552: ...User s Manual 552 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 562: ...User s Manual 562 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 565: ...Part XI Status Performance Monitoring and Reporting...
Страница 566: ......
Страница 578: ...User s Manual 578 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 609: ...Part XII Diagnostics...
Страница 610: ......
Страница 624: ...User s Manual 624 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 626: ...User s Manual 626 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 638: ...User s Manual 638 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 639: ...Part XIII Appendix...
Страница 640: ......
Страница 864: ...User s Manual 864 Document LTRT 89729 Mediant 3000 Reader s Notes...
Страница 871: ...Version 6 6 871 Mediant 3000 User s Manual 55 Selected Technical Specifications Reader s Notes...
Страница 872: ...User s Manual Ver 6 6 www audiocodes com...