Set Number of Rings Before Call goes to Voicemail – Cisco Unity Connection 8.0

I get so frustrated every time I try to find Cisco configuration information

on the website and in their help files, that my blood pressure surely rises considerably.  I decided to make a short write-up explaining how to change the number of rings before a call will go to voicemail.  It is actually measured by a timer in seconds, rather than a number of rings specifically.

I was simply trying to find a help document that would show me how to change the amount of time or number of rings before a call is directed to voicemail with Cisco Unity Connection Manager 8 or Cisco Unified CM Administration.  In my case I am using System version:

When I searched the help files, all I found was a ‘description.’ No place in the description indicated where this setting would be configured.  I had to search exhaustively on the internet (Google) and the best I could find was a configuration example for an old version, which fortunately used the same menu and parameter names.

Here is my write-up for anyone else that may wish to adjust this setting. Hopefully they will find my page without having to look for it on the Cisco website….

which is completely TERRIBLE.

TERRIBLE trying to find information.

Really Cisco, you are awful and need to work on making your help documents easier to find.

Here is my write-up:

1.  Log into your Unity CM Administration server through the web login http://[your-server-ip-address]

2.  Open the System menu and go to Service Parameters

Cisco Unity CM Administration 8 Service Parameters to configure Call Forward No Answer

3.  Select your Call Manager server from the Server drop-down menu

4.  Select Cisco Call Manager (Active) from the Service drop-down menu

Cisco Unity CM Administration 8 Call Forward No Answer timer setting, to set number of rings before call goes to voicemail

4.  Scroll down the page and look for Clusterwide Parameters (Feature – Forward)

Cisco Unity CM Administration configuration Call Forward No Answer timer, how many rings before call goes to voicemail

5.  In my case the default setting was 12 (seconds) between the time a call starts ringing and the time it is directed to voicemail.  Change this to a different number according to your preferences.

6.  Click the Save button at the top or bottom of the page.

According to Cisco’s website (with an older configuration example), you do not need to restart Call Manager for these settings to take effect.




6 comments for “Set Number of Rings Before Call goes to Voicemail – Cisco Unity Connection 8.0

  1. Ugh
    December 9, 2011 at 2:23 pm

    I have had the same complaint with Cisco’s documentation. It’s great if you have time to learn from the ground up, but us admins do not have the luxury of learning the systems from the ground up before we are expected to support them.

    I have a similar problem, where yesterday, anyone here pressed the Msgs button and got straight to Voice Mail login, but today, it actually makes us wait past the second ring. Weird.

  2. Gary Morris
    April 11, 2012 at 6:41 pm

    This can also be done per extension beside system wide as was decribed:

    To change the timer on an extension:
    1. In CallManager, go to the phone, then the Directory Number page
    2. Scroll down to a setting called “No Answer Ring Duration”
    3. This is in seconds, and there are about 3-4 seconds per ring. So 12 seconds is ~3 rings, 16 seconds is 4 rings, etc.
    4. Leave it blank to use the global default.
    5. Click Save and you are done!

    • lastsnare
      June 4, 2012 at 1:17 pm

      Thank you for the information Gary !

  3. August 29, 2013 at 4:10 pm

    Just an FYI on Unity 9 you can accomplish this inside unity (no call manager) if you go to the users in questions,
    Transfers Rules
    – select the transfer method enabled –
    “Call Transfer”
    “Transfer Type”
    “Supervise Transfer”


    • lastsnare
      August 29, 2013 at 4:12 pm

      Excellent, thanks Rolando !

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