Unity express (ism) module not working

Answered Question

Hi all,

I have a cisco unity express (ism) card connected to a cisco callmanager version 8.

Its connected to a cisco 2921 router.

Everything is up and running.. i can reach the unity express and webpage.

i also configured the cti-ports and route-points.. all is registred..

but.... when i dial the voicemail number (4000 im my case) then i won't get connected..(not possible tone).

How can this be..?????

I also tried rebooting callmanager and router.. didn't help.


Correct Answer by Rob Huffman about 6 years 5 months ago

Hi there,

The first thing to check would be the CSS (Calling Search Space) assigned to

the CTI-RP's to ensure that phones can access 4000.

Here is some related info;

CallManager for Cisco Unity Express Configuration Example


Hope this helps!


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