Hi Andy,
If you could post the config it would be very helpful
You may be hitting this restriction;
timeout (voice hunt-group)
To define the number of seconds after which a call that is not answered is redirected to the next number in a voice hunt-group list, use the timeout command in voice hunt-group configuration mode. To return to the default timeout, use the no form of this command.
timeout seconds
no timeout
Syntax Description
seconds | Number of seconds. Range is 3 to 60000. Default is 180. |
Command Default
Timeout period is 180 seconds.
Command Modes
Voice hunt-group configuration (config-voice-hunt-group)
Command History
Cisco IOS Release | Cisco Product | Modification |
|---|
12.4(4)T | Cisco CME 3.4 | This command was introduced. |
Usage Guidelines
If Call Forward No Answer is configured for a directory number in the voice hunt group, set the timeout value of this command to a value that is less than the timeout value of the call-forward noan command.
Examples
The following example shows how to define a no-answer timeout of 15 seconds for each hop between phones in peer hunt-group 25:
Router(config)# voice hunt-group 25 peer
Router(config-voice-hunt-group)# timeout 15
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_t1ht.html#wp1027646
Cheers!
Rob
