User's Manual 766 Document #: LTRT-10532
Mediant 500L Gateway & E-SBC
♦ Voice Quality Enhancement: Enable
• Alternative IP Profile:
♦ 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
• Quality of Service Rules (see Configuring Quality of Service Rules on page 334):
♦ Rule Metric: Poor InVoice Quality
♦ Alternative IP Profile Name: name of Alternative IP Profile (above)
Configuration of the Access SBC for both methods:
Coder Groups:
• Coders Group with G.711 and Opus
• Coders Group with Opus
Allowed Audio Coders Group with Opus
IP Profile:
• Extension Coders Group: Coders Group with G.711 and Opus
• Voice Quality Enhancement: Enable
• RTP Redundancy Mode: Enable
• RTCP Feedback: Feedback On
• Max Opus Bandwidth: 0
Alternative IP Profile:
• Extension Coders Group: Coders Group with Opus
• Allowed Audio Coders: Allowed Audio Coders Group with Opus
• Allowed Coders Mode: Restriction
• Voice Quality Enhancement: Enable
• RTP Redundancy Mode: Enable
• RTCP Feedback: Feedback On
• Max Opus Bandwidth: 0
Note:
• VoIPerfect is applicable only to G.711 calls.
• If you are deploying a third-party device between the Enterprise SBC and Access
SBC, make sure that the third-party device adheres to the following:
√ Enable RFC 2198 in SDP negotiation
√ Enable TMMBR in SDP negotiation
√ Forward the SDP with feedback (SAVPF) as is
√ Forward TMMBR messages as is
√ Forward RTCP messages as is (not terminate them)
√ (Smart Transcoding only) Forward re-INVITE messages for using Opus as is
√ (Smart Transcoding only) Forward the SIP header, X-Ac-Action as is
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