CCNA Voice – Lab 3
CallManager Express Configuration
In this lab we will configure callmanager express for basic dial using SCCP
Configuration.
172.16.1.2/24
172.16.1.1/24
172.16.201.1/24
Vlan 300
172.16.200.1/24
R1 – NYC
CallManager Express
R2 – LA
CallManager Express
Vlan 400
Vlan 200
VOIP Phones
172.16.200.0/24
VOIP Phones
172.16.201.0/24
Step 1: Configure Basic Infrastructure.
Get connectivity up between R1 and R2.
Configure interface on R1 as 172.16.200.1 to terminate vlan 200. Configure R1 as NTP
server. Configure R1 to act as DHCP server for vlan 200/voip phones. Make sure R1
gives out TFTP server to the phones as R1 itself as well.
Step 2: Setting Up CME for SCCP phones
In this section we will setup basic parameters – locate firmware loads for a specific
model of phone, set maximum number of phones that can register to 10 , maximum
directory numbers to 10 , source IP address used for registration (when is this required?),
set basic qos:
Commands:
Tftp-server flash:P000308000500.bin {you may have to touch/create a dummy file}
Telephony-service
{enables call manager express }
Load 7960-7940 P000308000500
{specifies load for model of phone}
Max-ephones 10
{maximum of phones that can register to this
device}
Max-dn 10
{maximum directory numbers}
Ip source-address 172.16.200.1 port 2000 {uses inside for source IP, standard SCCP
port 2000 }
Ip qos dscp default
{sets standard qos settings}
Cnf-file location flash:
Date-format yy-mm-dd {sets date format on IP Phones}
Time-format 12
{determines whether uses 12 hour or 24 hour clock format}
Time-zone ?
{ choose appropriate time zone}
Auto-reg-ephone
{allows autoregistration, so MAC addresses not needed}
Timeouts busy ?
{change busy seconds from default of 10 to 15}
Timeouts interdigit ?
{change from default of 10 to 20 seconds}
Timeouts ringing ?
{change to 30 seconds}
Keepalive 45
{sets interval between keepalives}
Step 3: Setting up directory numbers and phones.
Configure the following:
Ephone-dn 1 with phone number 6001, call forwards busy to 7001, and call forwards no
answer after 10 seconds to 7001.
Ephone-dn 2 with phone number 6002, call forwards busy to 7001, and call forwards no
answer after 10 seconds to 7001.
Ephone-dn 3 with phone number 6003.
Ephone-dn 4 with phone number 7001.
Ephone 1, mac address 0000.0000.0001 , type 7960, extension 6001 on line 1 and 6003
on line 2.
Ephone 2, mac address 0000.0000.0002, type 7940 extenion 7001 on line 1.