Specifications

Contents
iv
Cisco IOS Survivable Remote Site Telephony Version 4.0 System Administrator Guide
Related Documents 35
Standards 37
MIBs 37
RFCs 37
Technical Assistance 37
Setting Up the Network 39
Contents 39
Information About Setting Up the Network 39
How to Set Up the Network 40
Enabling IP Routing 40
Enabling SRST on an MGCP Gateway 40
Configuring DHCP for Cisco Unified SRST Phones 42
Specifying Keepalive Intervals 45
Configuring Cisco Unified SRST to Support Phone Functions 46
Verifying That Cisco Unified SRST Is Enabled 48
Where to Go Next 49
Setting Up Cisco Unified IP Phones 51
Contents 51
Information About Setting Up Cisco Unified IP Phones 51
How to Set Up Cisco Unified IP Phones 52
Configuring IP Phone Clock, Date, and Time Formats 52
Configuring IP Phone Language Display 53
Configuring Customized System Messages for Cisco Unified IP Phones 55
Configuring a Secondary Dial Tone 57
Configuring Dual-Line Phones 58
How to Set Up Cisco IP Communicator for Cisco Unified SRST 60
Verifying Cisco IP Communicator 61
Troubleshooting Cisco IP Communicator 61
Where to Go Next 61
Setting Up Call Handling 63
Contents 63
Information About Setting Up Call Handling 63
How to Set Up Call Handling for Incoming and Outgoing Calls 63
Configuring Incoming Calls 64
Configuring Outgoing Calls 81