SIP Trunking and Hunt Groups on the SPA8000
Cisco Small Business ATA Administration Guide 70
4
SIP Trunking and Hunt Groups on the SPA8000
The SPA8000 supports SIP Trunking, which allows you to connect a traditional
PBX to VoIP services. In this configuration, calls go through the ITSP rather than the
PSTN, yet the call routing functionality is similar to that of traditional PSTN lines.
You can configure up to four trunk groups for the purpose of inbound call routing
and outbound caller identification. You can configure a trunk number on the
SPA8000, such that an incoming call automatically rings the grouped lines
simultaneously or in a specified order. For outbound calls, SIP Trunking ensures
that all calls on a trunk line can be identified by the trunk number and a common
caller ID. This feature helps you to ensure that calls are directed to available lines
and that work groups such as sales teams can work together to answer calls. In
addition, teams can project a common identity when placing outbound calls on a
trunk.
This section provides information about SIP trunking and explains how to
configure your trunk groups.
Refer to the following topics:
About SIP Trunking, on page 71
Setting the Trunk Group Call Capacity, on page 73
Inbound Call Routing for a Trunk Group, on page 73
Contact List for a Trunk Group, on page 74
Outgoing Call Routing for a Trunk Group, on page 76
Configuring a Trunk Group, on page 77
Additional Notes About Trunk Groups, on page 80
Setting the Hunt Policy, on page 80
Trunk Group Management, on page 78
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