Aastra Telecom AastraLink Pro 160 - Manual (Page 199)

Configuring VoIP Settings
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Configuring AastraLink Pro 160 System and Network Parameters
AastraLink Trunking
You enable AastraLink trunking to support internetworking between Aastra IP
phone networks. For example, if you have an office in Atlanta, in Boston and in
Chicago, you can configure AastraLink trunks between the offices (
Figure 4-7 ).
When AastraLink Pro 160 devices are networked across a LAN/WAN, IP phone
users can make calls between the sites by dialing the following:
(prefix digit) + (access digit) + (extension)
Where:
prefix digit = 7 (default)
access digit = 0 - 9 (assigned by the Administrator)
extension = 3 or 4 digit extension number
Figure 4-7. AastraLink Trunks Between Atlanta, Boston, and Chicago Offices
Trunk
Trunk
Boston Office Atlanta Office
Trunk
AastraLink Pro 160 AastraLink Pro 160
10.30.50.125 10.30.60.135
10.30.70.145
Chicago Office
AastraLink Pro 160
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