Avaya BCM50 Konfigurationsanleitung PDF herunterladen (Seite 24)

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Nortel BCM50 Release 3.0 SIP Configuration Guide

*Nortel, Nortel Networks, Nortel (Logo), the Globemark, CS1000 are trademarks of Nortel Networks.

Issue 1.5 Page 24 of 38

4.4 Media Parameters

Configuration 



 Resources 



 Telephony Resources:

Select module type “IP Trunks” and click on the “SIP Media Parameters”

tab. Within this screen; ensure that all values are exactly as the sample screen

shot shown below:

• 1

Preferred Codec: G.729*

• 2

Preferred Codec: G.711-uLaw

• Voice Activity Detection: Disabled

• Jitter Buffer: Auto

• Fax transport: T.38**

• G.729 Payload Size: 20

Figure 16: SIP Media Parameters

* For default configurations, G.729A codec will be used for voice calls. However,

in the case that G.729B needs to be configured instead of G.729A, ensure that

“Enable Voice Activity Detection” is checked.

** Nortel recommends using T.38 as the fax transport – this has been tested

and is known to work. Any analog lines that will be used for fax should also

have the following minimum setting (see figure below):

For customers requiring G.711 fax, the following procedure needs to be

executed: Under

Configuration 



 Telephony 



 Sets 



 All DNs

, select the

DN used the analog device and go to the “Capabilities and Preferences” tab.

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Avaya BCM50 Konfigurationsanleitung Seite 24