SRST configuration is phone registeration

[BalajiSivaraj49175]

SRST phone registration procedure uses the translation pattern in transformation mask how phone get registered.

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sccp local FastEthernet0/0
sccp ccm 10.4.13.20 identifier 10
sccp ccm 10.4.13.70 identifier 12
sccp ccm 172.16.10.40 identifier 30
sccp
!
sccp ccm group 1
associate ccm 10 priority 1
associate ccm 12 priority 2
associate ccm 30 priority 3
switchback method graceful
!
!

[BalajiSivaraj49175]

Single and dual line phones

CME_Voice (Config) #ephone-dn?

ephone-dn tag

CME_Voice (config) # ephone-dn 1

CME_Voice (config-ephone-dn) # number?

WORD A sequence of digits – representing telephone number

CME_Voice (config-ephone-dn) #number 1000

CME_Voice (config-ephone-dn) # exit

CME_Voice (config-ephone-dn) # ephone-dn 2?

Dual-line dual line DN (2 calls per line/button)

CME_Voice (config) # ephone-dn 2 dual-line

CME_Voice (config-ephone-dn) # number 1001

The tag is a logical number used while assigning the ephone-dn to an ephone.  We can choose any ephone-dn tag from the range while creating the ephone-dn as long as the total numbers of ephone-dn don’t exceed the number mentioned in max-dn command.