AudioCodes Mediant 800B User Manual page 731

Gateway & e-sbc

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(by dynamic packet redundancy), allowing the Enterprise SBC to support more

concurrent calls than with G.711 for the same bandwidth. This mode is useful for WAN

networks that are relatively stable, allowing the use of G.711 whenever possible and

switching to Opus only during adverse network conditions.

Configuration of the Enterprise SBC:

Device's License Key includes the SBC transcoding feature

Coder Groups (see Configuring Coder Groups on page 395):

Allowed Audio Coders Groups (see Configuring Allowed Audio Coder Groups on

Main IP Profile (see Configuring IP Profiles on page 405):

Alternative IP Profile:

Quality of Service Rules (see Configuring Quality of Service Rules on page 315):

Managed Opus: If the Enterprise SBC detects WAN network impairments during a

call using the Opus coder between the Enterprise SBC and Access SBC, it can

change (reduces) the bit rate of the coder for that specific call to ensure high voice

quality is maintained. The advantage of the Opus coder is that its' bit rate can change

dynamically according to bandwidth availability. This mode is useful for unstable

networks, allowing Opus to dynamically adapt to adverse network conditions.

Coders Group with G.711

Coders Group with Opus

Allowed Audio Coders Group with G.711

Allowed Audio Coders Group with Opus

Extension Coders Group: Coders Group with G.711

Allowed Audio Coders: Allowed Audio Coders Group with G.711

Allowed Coders Mode: Restriction

RTCP Feedback: Feedback On

Voice Quality Enhancement: Enable

Extension Coders Group: Coders Group with Opus

Allowed Audio Coders: Allowed Audio Coders Group with Opus

Allowed Coders Mode: Restriction

RTP Redundancy Mode: Enable

RTCP Feedback: Feedback On

Voice Quality Enhancement: Enable

Max Opus Bandwidth: 80000

Rule Metric: Poor InVoice Quality

Alternative IP Profile Name: name of Alternative IP Profile (above)

Mediant 800B Gateway & E-SBC

37. Advanced SBC Features