| Parameter | Description |
|---|
| Name | The name you want to assign to the Codec Entry. This name appears in the list of codec options when you configure a Packet Service Profile. |
| Codec | Select the Codec from the drop-down list (refer to Audio Codecs for additional information on supported codecs): - amrBandwidthEfficient
- amrCrc
- amrCrcInterleaving
- amrCrcRobustSorting
- amrInterleaving
- amrInterleavingRobustSorting
- amrIuUP
- amrOctetAligned
- amrRobustSorting
- amrwbBandwithEfficient
- amrwbCrc
- amrwbCrcInterleaving
- amrwbCrcRobustSorting
- amrwbInterleaving
- amrwbInterleavingRobustSorting
- amrwbOctetAligned
- bv16
- bv32
- bv32Fec
- efr
- evrc
- evrc0
- evrc1
- evrc1Fr
- evrcb
- evrcb0
- evrcb1
- evrcb1Fr
- evs
- g711 (default)
- g711ss
- g722
- g7221
- g7221ss
- g7231
- g7231a
- g726
- g726ss
- g728
- g728ss
- g7291
- g729a
- g729ab
- gsm
- ilbc
- ilbcss
- isac
- I16-16
- msrta16
- msrta8
- opus
- silk12
- silk16
- silk24
- silk8
- speex16
- speex16Fec
- speex32
- speex8
- speex8Fec
- amrwbCrcInterleavingRobustSorting
|
| <codec>Coding Rate | Specifies the coding rate for the codec entry, in Kbps. Codecs for which this option can be configured: - G726 (default 32)
- G726ss (default 32)
- G7231 (default 6.3)
- G7231a (default 6.3)
- Ilbc (default 13.3)
- Ilbcss (default 13.3)
- G722 (default 64)
- G722ss (default 64)
- G7221 (default 32)
- G7221ss (default 32)
- Evrcb0 (default 9.3)
|
| Packet Size Generic Codecs | Specifies the packet size in milliseconds (ms). Options vary based on the type of codec chosen. Codecs for which this option can be configured: - bv16
- bv32
- bv32Fec
- g7221-32
- g728
- g7291
- gsm
- isac
- l16-16
- msrta8
- msrta16
- silk8
- silk12
- silk16
- silk24
- speex8
- speex8Fec
- speex16
- speex16Fec
- speex32
|
| Packet Size <codec> | Specifies the packet size in milliseconds (ms). Options vary based on the type of codec chosen. Codecs for which this option can be configured: - G711 (default 10)
- G723 (default 30)
- Ilbc133 (default 30)
- Ilbc
- G722 (default 20)
- G728 (default 10)
- G7221 (default 20)
- Amrwb (default 20)
- Evrc (default 20)
- Amr (default 20)
- Evrcb0Evrc0 (default 20)
- G726 (default 20)
- G729 (default 20)
- OPUS (default 20)
- EVS (default 20)
|
| Active Codec Set | The active code set is applicable to certain AMR narrow-band codecs. By default all options are selected. The options are are: - AMR-0-4.75kbps
- AMR-1-5.15kbps
- AMR-2-5.90kbps
- AMR-3-6.70kbps
- AMR-4-7.40kbps
- AMR-5-7.950kbps
- AMR-6-10.20kbps
- AMR-7-12.20kbps
|
| Mode Set | The mode set is applicable to AMR wide-band codecs. By default all options are selected. The options are are: - AMR-0-6.6
- AMR-1-8.85
- AMR-2-12.65
- AMR-3-14.25
- AMR-4-15.85
- AMR-5-18.25
- AMR-6-19.85
- AMR-7-23.05
- AMR-8-23.85
|
| Fec Redundancy | Sets the level for Forward-Error-Correction (FEC) redundancy [AMR only]. The default value of 0 means FEC redundancy is disabled. Options are 0, 1, or 2. |
| Static Preferred Rtp Payload Type | Specifies the preferred static RTP payload type. The value ranges from 0 to 128 and the default value is 128. |
| Dynamic Preferred Rtp Payload Type | Specifies the preferred dynamic RTP payload type. The value ranges from 0 to 127 and the default value is 96. |
| Max Interleave Depth | This parameter specifies the amount of interleaving an endpoint can deal with. The value ranges from 0 to 7 and the default value is 0. This option appears only when the codec selected is evrc or evrcb and when Packet Size is set to 40 or 60. Note: Interleaving only applies to EVRC and EVRCB calls. |
| Mode Change Neighbor | Enable this option to force a mode change to neighboring modes in the active codec set as per RFC4867 (applies to AMR and AMRWB codecs). |
| Initial Codec Mode | Use this option to determine the initial codec mode of an AMR/AMR-WB transcoded call once the call is established. This option applies to codec entries using amrBandwidthEfficient, amrOctetAligned, amrwbBandwidthEfficient, or amrwbOctetAligned codecs. - Disable (default) – AMR/AMR-WB call starts with the highest rate in the active mode set.
- Enable – AMR/AMR-WB call starts with a rate determined by the following algorithm:
- If one codec mode is included in the mode-set, it is the initial codec mode.
- If two or three codec modes are included in the mode-set, the initial codec mode is the codec mode with the lowest rate.
- If four or more codec modes are included in the mode-set, the initial codec mode is the codec mode with the second lowest rate.
|
| Law | Specifies the G711 law to use, values are: - A Law
- U Law
- Derive From Other Leg (default)
Note: Do not use Derive From Other Leg when configuring H.323 or SIP trunk groups to use INVITEs with no SDP. |
| Send Sid | Use this option to enable or disable sending silence insertion descriptor (SID) packets. |
Max Average Bit Rate | The maximum Opus bit rate (in bits/second) used for the current session. The value ranges from 6000 to 510000 and the default value is 20000. |
Use Cbr | Use this parameter to specify variable or constant bit rate. Applies to Opus only. 0 – Use variable bit rate1 – Use constant bit rate
|
Use Fec | Use this parameter to specify whether or not to use Forward Error Correction (FEC). Applies to Opus only. 0 – Do not use FEC1 – Use FEC
|
Use Dtx | Use this parameter to specify whether or not to use Discontinuous Transmission (DTX).
- 0 – Do not use DTX (default)
- 1 – Use DTX
|
| Min Bit Rate | Specifies the minimum bit rate for the EVS codec. Default is 5.9 and the supported values are 5.9, 7.2, 8, 9.6, 13.2, 16.4, 24.4, 32, 48, 64, 96, or 128 Kbps. This value must be less than or equal to Max Bit Rate. |
| Max Bit Rate | Specifies the maximum bit rate for the EVS codec. Default is 128 and the supported values are 5.9, 7.2, 8, 9.6, 13.2, 16.4, 24.4, 32, 48, 64, 96, or 128 Kbps. This value must be greater than or equal to Min Bit Rate. |
| Use Silk DTX | Specifies whether to use Discontinuous Transmission (DTX) for a Silk codec. - 0 – Do not use DTX (default)
- 1 – Use DTX
|
Max Average Bit Rate Silk8|Silk12|Silk16|Silk24 | Specifies the maximum average bit rate (in bits/sec) for a Silk codec. Options are: Silk8 (default 20000, range 6000 - 20000)
Silk12 (default 25000, range 7000 - 25000)
Silk16 (default 36000, range 8000 - 36000)
Silk24 (default 40000, range 12000 - 40000) |
