Aastra Telecom AastraLink Pro 160 - Manual (Page 185)

Configuring VoIP Settings
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Configuring AastraLink Pro 160 System and Network Parameters
The VoIP menu includes the following tabs:
• SIP Trunking - Allows you to enable SIP trunking on the AastraLink Pro 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.
• SIP DIDs - Allows you to specify SIP Direct Inward Dialing (DID) prefixes
for SIP trunks. Direct Inward Dialing (DID) is a service of a local phone
company that provides a block of telephone numbers for calling into a
company's private branch exchange (PBX) system.
• AastraLink Trunks - Allows you to specify AastraLink trunking to support
internetworking between Aastra IP phone networks.
• Mobility Base Units - Allows you to add, delete, or reboot Mobility Base
Units (MBUs) to/from the AastraLink network.
The following paragraphs describe each of these types of VoIP configurations.