Nortel BCM200 Integration Manual

Also see for BCM50: Configuration guide Installation and maintenance guide Keycode Installation Guide Installation and configuration guide Documentation update

Contents

Nortel BCM200 Integration Manual Manual pdf 56 page image

56 BCM50 configurationField Value DescriptionG.723 Performance note: Codecs on all networkedBCMs must be consistent to ensure the properfunctionality of interacting features such asTransfer and Conference.Systems running BCM Release 3.5 or laterallow codec negotiation and renegotiation toaccommodate inconsistencies in codec settingsover VoIP trunks.Enable VoiceActivity Detection Voice Activity Detection (VAD), also knownas silence suppression, identifies periods ofsilence in a conversation and stops sendingIP speech packets during those periods. Ina typical telephone conversation, most of theconversation is half-duplex, meaning that oneperson is speaking while the other is listening. IfVAD is enabled, no voice packets are sent fromthe listener end. This greatly reduces bandwidthrequirements. G.723.1 and G.729 support VAD.G.711 does not support VAD.Performance note: VAD on all networked BCMsand IPT systems must be consistent to ensurefunctionality of features such as Transfer andConference. The Payload size on the IPT mustbe set to 30ms.Jitter buffer AutoNoneSmallMediumLargeSelect the size of jitter buffer for your system.G.729 payload size(ms)10,20,30,40,50,60G.723 payload size(ms)30G.711 payload size(ms)10,20,30,40,50,60Set the maximum required payload size, percodec, for the VoIP calls sent over H.323 trunks.Note: Payload size can also be set for NortelIP telephones. See BCM 4.0 Telephony DeviceInstallation Guide (N0060609).Enable T.38 fax When enabled, the system supports T.38 faxover IP.Caution: Fax tones broadcast through atelephone speaker may disrupt calls at othertelephones using VoIP trunks in the vicinity ofEnterprise: CommonSolution Integration Guide for Multisite Business Communications Manager SystemsNN49000-303 01.01 StandardRelease 4.0, 3.7 29 June 2007Copyright © 2007, Nortel Networks.