Coder Parameters

The coder parameters are described in the table below.

Coder Parameters

Parameter

Description

'SILK Tx Inband FEC'

configure voip > media settings > silk-tx-inband-fec

[SilkTxInbandFEC]

Enables forward error correction (FEC) for the SILK coder.

■

[0] Disable (default)

■

[1] Enable

'SILK Max Average Bit Rate'

configure voip > media settings > silk-max-average-bitrate

[SilkMaxAverageBitRate]

Defines the maximum average bit rate for the SILK coder.

The valid value range is 6,000 to 50,000. The default is 50,000.

The SILK coder is Skype's default audio codec used for Skype-to-Skype calls.

'Opus Max Average Bitrate'

configure voip > sip-definition settings > opus-max-avg-bitrate

[OpusMaxAverageBitRate

Defines the maximum average bit rate (in bps) for the Opus coder.

The valid value range is 6000 to 50,000. The default is 50,000.

'AMR Payload Format'

[AmrOctetAlignedEnable]

Defines the AMR payload format type.

■

[0] Bandwidth Efficient

■

[1] Octet Aligned (default)

Note: The AMR payload type can also be configured per Coder Group (see Configuring Coder Groups). The Coder Group configuration overrides the parameter.

'Fax/Modem Bypass Packing Factor'

configure voip > media fax-modem > packing-factor

[FaxModemBypassM]

Defines the number (20 msec) of coder payloads used to generate a fax/modem bypass packet.

The valid range is 1, 2, or 3 coder payloads. The default is 1 coder payload.