Multi-site Webdialer/Click to Call not working

[Javier Aquino]

Hello pros

I have a CUCM 7.1 deployment  with 50+ sites.  I got Click 2 Call and Webdialer to work on the central site, but trying to start a call from a phone that is not on the main site does not work. I guess is related with some filtering access/list on the path... Before checking routers and switches access lists like crazy, I would like to know which ports CUCM uses to control the IP phone and which ports would use the phone to answer to those requests. ¿Can anyone give me a hand with this? I haven`t found it on the documentation.

Thanks in advance

[Jaime Valencia]

All the ports are here:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/port/7_1_2/CCM_7.1.2PortList.pdf

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

[Javier Aquino]

Hey java

Thanks for the list, but still kinda lost regarding it... Which ones are used for Webdialer/Click to call?  My guess is 2748, 2749 and 2789. Am I right?

Thanks in advanc

[Inder Manjit Singh]

Javier,

Please see the following link:

http://www.cisco.com/en/US/docs/voice_ip_comm/cupa/click_to_call/7.0/english/release/ReleaseNote_c2c.html

Look unde the "Firewall Limitations" section.

Regards.  Inder.

[Javier Aquino]

Hello Inder,

Thanks for your input. However Im not sure if 8443 is all I need, communciation between Click2Call and CUCM seems to be fine. I´ll explain what I got.

PC in central site, phone in central site WORKS

PC in remote site, phone in remoet site FAIL

PC through VPN (bypassing WAN restrictions), phone in remote site FAIL

PC through VPN (bypassing WAN restrictions), phone in central site WORKS

PC through VPN (bypassing WAN restrictions), IPC in same PC WORKS

So the problem seems to be between CUCM and Phones in remote sites...

Please share your  thoughts

Thanks again, pros

[Inder Manjit Singh]

Hello Javier,

I assume you are able to make calls between the phones otherwise (i.e. without the click-to-call).

CallManager uses CTI to control devices:

1.  Have you checked the "Allow Contol of Device from CTI"?  This will be under the user.

2.  Aslo set this item under the directory number.

CTI uses TCP 2748.  Also make sure that the "Cisco CTIManager Service" is activated and running.

Regards.  Inder.

[Javier Aquino]

Inder

Yes, It works with phones on the central location and the settings you mention have been checked.

2748 sounds like a good number. I'll track that port through the path and make sure it can go through

I'll let you know

Thanks