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AastraLink Pro 160 Administrator Guide
Configuring VoIP Settings
From the VoIP menu, you can configure:
•“SIP Trunking” on page
•“SIP Direct Inward Dialing (DID)” on page
•“AastraLink Trunking” on page
The following paragraphs describe each of these types of VoIP configurations.
SIP Trunking
You enable SIP trunking on the AastraLink Pro 160 in order to support internetworking between your Aastra IP phones, and the SIP devices on a VoIP service provider network. On the AastraLink Pro, you can configure up to 10 SIP trunks for your network. See Figure
Note: When you enable SIP trunking, note the following important information:
—You can configure up to 10 SIP trunks between your AastraLink Pro 160 IP phone network and a service provider network.
—Depending on whether or not you enable UPnP support on your AastraLink device (that is, whether or not your AastraLink is installed behind a UPnP enabled router), you may need to manually specify the router RTP port start/range used for external SIP calls, and forward this port range and the SIP port (5060) from the public/external Internet gateway/router to the AastraLink local IP address. Refer to “Editing Local Service Settings” on page
Incoming SIP trunk calls
Call routing
The AastraLink Pro 160 automatically routes incoming SIP calls using the TO: address in the header of the SIP message. If the address matches a Direct Inward Dialing (DID) rule and results in a valid SIP extension, the call is routed directly to that extension. If no match is found, the call is sent to the current incoming call destination (for example, open or closed hours routing to