Cisco 2650 - 2650 Router Specifications Page 26

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2-6
Cisco IOS Telephony Service, Version 2.02
Chapter 2 Required Configuration Tasks
How to Configure Cisco IOS Telephony Service
Step 5 Get the tool command line (TCL) interactive voice response (IVR) script and download the files to the
router’s Flash memory.
Step 6 Download the CiscoIOSTSP.zip file to a convenient location on your PC. You need the TSP files to set
up individual PCs for the Cisco IP phone user. For further details, see “Cisco IOS TSP Download and
Setup”.
Configuring DHCP for the Cisco IP Phone
When the Cisco IP phone is turned on, it automatically queries for a DHCP server. Then the DHCP
server responds by assigning an IP address to the Cisco IP phone. The IP address of the TFTP server is
also provided through DHCP option 150. The Cisco IP phone then attempts to get the configuration file
SEPDEFAULT.cnf and phone firmware from the TFTP server.
Note The SEPDEFAULT.cnf file is autogenerated in the router’s Flash memory when Cisco IOS Telephony
Service is configured.
You can configure DHCP for the Cisco IP phones by performing any of the following tasks:
Configuring the DHCP IP Address Pool
Configuring the DHCP IP Address for Each Cisco IP Phone
Configuring DHCP Relay
Configuring the DHCP IP Address Pool
This process creates a large shared pool of IP addresses, where all DHCP clients receive the same
information, including the option 150 TFTP server IP address, which can be a problem if some (non-IP
phone) clients need to use a different TFTP server address.
SUMMARY STEPS
1. ip dhcp pool pool 1
2. network ip-address
3. option 150 ip ip-address
4. default-router ip-address
DETAILED STEPS
Command Purpose
Step 1
Router(config)# ip dhcp pool pool 1
Creates a name for the DHCP server address pool
and enters DHCP pool configuration mode.
Step 2
Router(config-dhcp)# network ip-address
Specifies the IP address of the network.
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