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How do I change the number of rings before my Cisco IP Phone forwards to voice mail?

Resolution

Changing the number of times a Cisco IP Phone rings before forwarding to voice mail or another station is easily accomplished by changing a service parameter.

  1. From the Cisco CallManager Administration web pages, select Service > Service Parameters.
  2. Select Cisco CallManager from the list and then choose the Cisco CallManager service from the list on the left.

    The parameter that needs to be changed is titled Forward No Answer Timeout. By default, it has a value of 12 seconds. A typical ring cycle is approximately 4 seconds.

Note: This is a global parameter, so changing this value will affect the behavior of all phones. When changing this value be sure to do so for all CallManagers in the cluster.

Cisco CallManager 4.2(3) allows you to set this parameter on a per line basis. The field name is No Answer Ring Duration.

For more details, please refer to Cisco 7900 IP Phone FAQs.

Voicemail Problems

Voicemail behavior problems

Supplementary Services

Call forward no answer (CFNA)

Comments
Community Member

Hi TCC,

We are on Cisco CallManager 10.5.

Is there a way to change the number of rings before Cisco IP phone forwards to voice mail on a per line basis ? 

 

Thanks, 

Community Member

Cisco CallManager 4.2(3) allows you to set this parameter on a per line basis. The field name isNo Answer Ring Duration.

Community Member

Hi,

 

Do you want to do a customization per End user or Globally  within your system ?

 

Per end user this can be done on the each Directory number line on " No Answer Ring Duration (seconds)".

Globally this can be set on Service Parameters, Publisher - call manager active, clusterwide parameters - redirection rig no answer reversion timer.

 

Let me know if this answers your question.

Community Member

FYI -  4 seconds = 1 ring in the USA.  so a setting of "16" is 4 rings then forward.

Community Member

Great correct answer for Rel 10.5 system Big HELP and Time saver!!!

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