Avaya IP Telephony Guía de configuración Pagina 150

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150 Interoperability
P0993474 03
Symbol NetVision telephones
In order to make calls between Symbol telephones and Business Communications Manager 3.0,
each must be configured to have at least one common codec. The following codecs are supported
by the NetVision telephones.
G.711 u-law
G.711 A-law
G.729 Annex A and Annex B
Software interoperability restrictions and limitations
The following tables provide a brief overview of the IP telephony H.323 compatibility issues,
including NetVision handset restrictions, and Gatekeeper restrictions. The tables are organized by
Business Communications Manager software release numbers.
Table 36 Software interoperability restrictions and limitations
Software release Description of restriction/limitation
All versions ITG payload sizes should be set to 30 ms.
All versions Silence suppression should be configured to the same value on both Business
Communications Manager and ITG (for example: both on or both off).
Silence suppression is called Voice Activity Detection on ITG.
2.03 GA
2.5 GA
M1/ITG interaction with more than one ITG: when transferring, conferencing, working with
two or more ITG cards, they must be on the same subnet. If they are not on the same
subnet, one-way speech path situations can occur.
2.5 FP1
2.5 FP1 MR1.1
3.0
The profile on the ITG must be set to the same first preferred codec as that of the Business
Communication software. Software on the ITG trunk card must be 2.X.25 release.
In order for features such as Transfer and Conference to operate correctly between all
Business Communications Managers and ITGs in a network, these are the rules:
The First Preferred Codec for VoIP Trunks must be the same on all Business
Communications Managers. This is configured in Unified Manager under Services,
IP Telephony, H.323 Trunks, Media Parameters.
In addition, if the first preferred codec is G.729 or G.723, the Silence Suppression option
on that page must be the same on all Business Communications Managers in the
network.
The Business Communications Manager supports only basic call to/from NetMeeting.(S/W
version FP1 GA)
2.5 GA, 2.5 FP1,
3.0
FAX over IP is not supported.
2.5 FP
2.5 FP1 MR1.1
3.0
Long tones do not work over IP trunks.
2.5 FP1
2.5 FP1 MR1.1
3.0
Firewall Default Rules, when enabled, block call processing and signaling. You must add an
additional rule to pass Protocol TCP\UDP, Destination Port H.323 for speech path to
initialize.
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