adding prefix to telephone number

[mr.bond]

for callback user,i want to add prefix 9 to his number(the number specified specified by user).actually the modems are goup hunted on one number and i defined user specified number for callback and the router need to dial 9 and the user specified number .suggest me

[ivillegas]

You can use the colon or comma in your dialer string configuration to add a prefix. Also check the link

http://www.cisco.com/warp/public/123/1.html

ex:

dialer map ip 192.168.x.x broadcast 9, xxxxxxx

or

dialer map ip 192.168.29.2 broadcast 9 :15152425965

[mr.bond]

i am using ACS 2.6.4,how to set the prefix in that.