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Avaya Communication Manager Global Administration
Issue 3 January 2008 23
Question 6: Is the intra-region audio administration correct in the
ip-codec-set form?
Review all IP codec-sets used across the enterprise including the IP codec-sets used by
media processors, IP trunks, and IP stations.
Wide-band codecs (for example, SIREN series, G.722.1 series, and G.722-64k) should
appear first and are supported for shuffled Polycom VSX calls only across a single Avaya
Communication Manager system.
G.711 should appear next.
Then follow with G.729/G.729A codec, etc.
Yes.
No.
Question 7: Is the inter-region audio administration correct in the
ip-codec-set form?
Review all codec-sets used across the enterprise including the codec-sets used by media
processors, IP trunks, and IP stations.
Are there bandwidth issues? If no, then re-use the one codec set also in use for intra-region.
If there are bandwidth issues, specify a low bandwidth codec first followed by one G.711
codec. If there are severe bandwidth issues, customers can choose to leave out G.711 and
also ensure video is disabled.
Yes.
No.
Question 8: Is the audio administration for Polycom VSXs correct in the
ip-codec-set form?
Review all codec-sets used across the enterprise including the codec-sets used by media
processors, trunks, and stations.
If codec-sets used for stations include G.729, then a new network-region and codec must be
defined for use by Polycom VSXs. VSX stations do not support G.729 but do support
G.729A.
Note that media encryption is not supported by VSX stations.
Yes.
No. Expect call setup failure. This is a work around for a VSX signaling issue.