Avaya BCM50 Configuration Manual - Page 6
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4.0 Overview
Figure 4-1 shows a typical deployment of a SIP trunk between BCM R6 and Skype. In the deployment,
a SIP unaware layer 3 device with NAT and firewall is deployed between the BCM and Skype. The IP
address assigned to the BCM and all IP phones is private and since Skype does not support remote
NAT compensation, the BCM is configured to compensate for the presence of the local NAT.
SMB network protected by a NAT/FW
with BCM on the LAN
A
B
BCM
TDM Phone
Skype SIP
Trunk
NC; Reviewed:
10/01/2010
Local NAT
Compensation
NAT/FW
Figure 4-1 SIP Trunking between BCM and Skype
Avaya BCM Solutions Test Lab
Application Notes
©2010 Avaya Inc. All Rights
Reserved.
Public Internet
ConfiguringSIPTrunkingSkype-BCM6
Skype
C
Phone
PSTN
D
Phone
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