To register our phones to CME using the SIP protocol.

(Refer the link below to find out information about SCCP and SIP firmware file names. Make sure you have the files uploaded to the Router’s flash. You can use: copy tftp flash: command)




voice service voip

allow-connections sip to sip

[Allows calls among SIP Endpoints]


bind all source-interface FastEthernet0/0.115

[For binding the source interface for SIP Traffic]

registrar server expires max 1200 min 300

[Defines SIP Register server]

voice register global

[Enters into SIP CME configuration]

mode cme

[To configure CME mode from default SRST mode]

source-address port 5060

max-dn 20

max-pool 5

load 7960-7940 P0S3-08-8-00

[To specify the firmware load file for the model 7940-7960]

tftp-path flash:

[To specify Firmware file location]

timezone 42

time-format 12

date-format D/M/Y

[Define the Date and Time]

create profile

[To generate configuration files]

file text

[Configuration files are written as ASCII text files.]


Configuring a Directory Number for a SIP Phone

voice register dn 1

number 5001

name PHONE1


Configuring IP Phone using the following commands

voice register pool 1

id mac 0006.D79C.2F05

type 7960

number 1 dn 1

dtmf-relay sip-notify

codec g711ulaw




show voice register global

CONFIG [Version=7.0(0)]


Version 7.0(0)

Mode is cme

Max-pool is 5

Max-dn is 20

Outbound-proxy is enabled and will use global configured value

Source-address is port 5060

Load 7960-40 is P0S3-08-8-00

Time-format is 12

Date-format is D/M/Y

Time-zone is 42

Hold-alert is disabled

Mwi stutter is disabled

Mwi registration for full E.164 is disabled

Forwarding local is enabled

Dst auto adjust is enabled

start at Apr week 1 day Sun time 02:00

stop at Oct week 8 day Sun time 02:00

Max redirect number is 5

Telnet Level: 0

Tftp path is flash:

Generate text file is enabled

Tftp files are created


show voice register dn 1

Dn Tag 1


Number is 4001

Preference is 0

Huntstop is disabled

Name hemanth

Auto answer is disabled


show voice register pool 1

Pool Tag 1


Mac address is 0006.D79C.2F05

Type is 7960

Number list 1 : DN 1

Proxy Ip address is

DTMF Relay is disabled

Call Waiting is enabled

DnD is disabled

keep-conference is enabled

username cisco password cisco

service-control mechanism is supported

registration Call ID is 0006d79c-2f050908-51166f3b-3051650d@

active primary line is: 4001


contact IP address: port 5060



Dialpeers created:


dial-peer voice 40001 voip

destination-pattern 4001

session target ipv4:

session protocol sipv2

after-hours-exempt FALSE



Active registrations : 1


Total SIP phones registered: 1

Total Registration Statistics

Registration requests : 2

Registration success : 2

Registration failed : 0

unRegister requests : 1

unRegister success : 1

unRegister failed : 0



debug voice register error

debug tftp events

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