Specifications

ManualsBrandsCisco ManualsConsumer electronics7902G - Unified IP Phone VoIP

Getting Started

Configuration and Upgrade Tasks

Cisco Unified SIP SRST 4.0 System Administrator Guide

If you are interested in Cisco Unified SIP

SRST 4.0 (using a B2BUA) and have never used

Cisco Unified SIP SRST in the past, complete

these procedures.

VoIP-to-VoIP connections permit the termination

and reorigination of transferred and forwarded

calls over the VoIP network. The following task

describes how to allow SIP connections:

• Enabling SIP-to-SIP Connection Capabilities

SIP registrar functionality in Cisco IOS software

is a required part of Cisco Unified SIP SRST. A

registrar accepts SIP Register requests and

dynamically builds VoIP dial peers, allowing the

Cisco IOS voice gateway software to route calls to

SIP phones. The following task describes how to

configure the SIP registrar:

• Configuring the SIP Registrar

Configure a basic voice register pool:

• Configuring Backup Registrar Service to SIP

Phones

You are now ready to configure Version 4.0

features such as call blocking and call forwarding.

The following chapter describes the call blocking

and call forwarding configurations:

• Configuring Cisco Unified SIP SRST

Features Using Back-to-Back User Agent

Mode (for Version 3.4 and Version 4.0 Only)

If you are currently running Version 3.0 and want

to upgrade to Version 4.0, complete these

procedures.

Since Version 4.0 uses a B2BUA and not a

redirect server, call redirection must be disabled

as described in the following task:

• Disabling Call Redirection