×

Warning message

  • Cisco Support Forums is in Read Only mode while the site is being migrated.
  • Cisco Support Forums is in Read Only mode while the site is being migrated.

IP phone communication bet. 2 different versions of call-managers

Answered Question
Dec 3rd, 2013
User Badges:

Hello,


we are having 2 call managers.


1 CCM 4.1

2 CUCM 8.6


IP phones are registered on both the call managers.Is it possible to communicate in between ip phones registered on two different call managers ?



Thanks And Regards


Pushpak

Correct Answer by Aman Soi about 3 years 7 months ago

Hi Pushpak,


I do not think so it is possible, u need to upgrade the cluster since the IP phone firmware are different for CUCM version.



regds,

aman

Correct Answer by Ayodeji Okanlawon about 3 years 8 months ago

What is not working? Do you get a busy tone? Do you get your call cannot be completed as dialled? You need to check your CSS on the ICT..Ensure that it has access to the partitions of your phones etc...


Please give us a detailed explanation of the issue you are having with this



Please rate all useful posts


"opportunity is a haughty goddess who waste no time with those who are unprepared"

Correct Answer by Jaime Valencia about 3 years 8 months ago

No, all you need is an ICT on each cluster pointing to the other one and configure the call routing, thats it.

Sent from Cisco Technical Support iPad App

Correct Answer by mkchandak about 3 years 8 months ago

Hi Pushkar,


Yes, that can be done. You can register the CallManagers with each other using Inter cluster Trunks. These ICTs would work similiar to a H323 Gateway.You can add them to each other and take it from there.Here is some more info on the same:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/a08trnk.html#wp1092058


Hope this helps,

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4.8 (5 ratings)
Loading.
Correct Answer
mkchandak Tue, 12/03/2013 - 03:40
User Badges:

Hi Pushkar,


Yes, that can be done. You can register the CallManagers with each other using Inter cluster Trunks. These ICTs would work similiar to a H323 Gateway.You can add them to each other and take it from there.Here is some more info on the same:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/a08trnk.html#wp1092058


Hope this helps,

pushpak.lele Tue, 12/03/2013 - 08:31
User Badges:

Hi,


Thanks,


I will surely try this out and let you know once done.



Thanks And Regards


Pushpak

pushpak.lele Thu, 12/12/2013 - 21:19
User Badges:

hi,


We tried configuring trunk between 8.6 and 4.1 its not working.


Can you please let us know if there is any detailed configuration documentation for the same .




Thanks And Regards


Pushpak

Correct Answer
Jaime Valencia Thu, 12/12/2013 - 23:48
User Badges:
  • Cisco Employee,
  • Hall of Fame,

    2011

No, all you need is an ICT on each cluster pointing to the other one and configure the call routing, thats it.

Sent from Cisco Technical Support iPad App

pushpak.lele Mon, 12/23/2013 - 20:50
User Badges:

Hi,


we were making configuration mistake in call routing group.


Now it working properly.


Thanks for the help



Thanks And Regards


Pushpak

Correct Answer
Ayodeji Okanlawon Fri, 12/13/2013 - 02:19
User Badges:
  • Super Bronze, 10000 points or more
  • Cisco Designated VIP,

    2017 IP Telephony

What is not working? Do you get a busy tone? Do you get your call cannot be completed as dialled? You need to check your CSS on the ICT..Ensure that it has access to the partitions of your phones etc...


Please give us a detailed explanation of the issue you are having with this



Please rate all useful posts


"opportunity is a haughty goddess who waste no time with those who are unprepared"

pushpak.lele Mon, 12/23/2013 - 20:41
User Badges:

Hi,


thanks for the help,


There was a small mistake we were doing with call routing.


Thnaks


Pushpak

pushpak.lele Mon, 12/23/2013 - 20:47
User Badges:

Hi,


Thanks for the help.


We are now able to communicate within two different versions of call manager.

Now we need to migrate all the IP phones from version 4.1 to 8.6.

Is it possible to migrate just ip phones to new call manager or we need to migrate entire database  .

We are facing issues in upgrading the call manager and restoring database with the help od DMA.


So kindly let us know if there is any procedure for migrating just IP phones to new call manager ?


Thnaks And Regards


Pushpak

Correct Answer
Aman Soi Mon, 12/23/2013 - 20:57
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 IP Telephony

Hi Pushpak,


I do not think so it is possible, u need to upgrade the cluster since the IP phone firmware are different for CUCM version.



regds,

aman

pushpak.lele Mon, 12/23/2013 - 23:14
User Badges:

Hi,


We need to change the tftp server ip address in ip phone. In version 4.1 through http we are unable to change the settings.


But we are able to ssh the ip phone is there is any default username and password for ssh ?



Thanks And Regards


Pushpak

Ayodeji Okanlawon Tue, 12/24/2013 - 01:47
User Badges:
  • Super Bronze, 10000 points or more
  • Cisco Designated VIP,

    2017 IP Telephony

You can either change the tftp address physically on the phone or change on the DHCP server that the phone gets its ip address from..Those are the two places you can change it from



Please rate all useful posts


"The essence of christianity is not the enthronement but the obliteration of self --William Barclay"

pushpak.lele Tue, 12/24/2013 - 02:44
User Badges:

Hi,


We have a IP phone registered to CCM 4.1 I changed the TFTP server address of phone to new TFTP ( CCM 8.6 )

Phone is not getting registered to new call manager.


So I manually added phone to new call manager reseted the IP phone but still its showing uregistered on new call manager.

Is it necessary to delete IP phone from old call manager ?


Both the call managers are in same subnet can it create the problem.?



Thnaks And Regards



Pushpak

Nadeem Ahmed Tue, 12/24/2013 - 05:00
User Badges:
  • Cisco Employee,

After you add the new TFTP server, do you see the ip address of CUCM 8.6 in Call manager list ?

Also what do you see in the status messages on phone?

Is the phone still registered to old CUCM?


You can try to erase network and device config on phone.. it could be that the old config is still in cache of the phone..



Br,
Nadeem 

Please rate all useful post.

Aman Soi Tue, 12/24/2013 - 06:48
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 IP Telephony

Hi Pushpak,


Make sure u have enough license to register new phone in CCM 8.6


regds,

aman

Jaime Valencia Tue, 12/24/2013 - 08:10
User Badges:
  • Cisco Employee,
  • Hall of Fame,

    2011

Do both cluster have the same FW version??

Did you configure the phone before registering it with CUCM???

Or at least enabled auto-reg??


HTH

java

if this helps, please rate

www.cisco.com/go/pdihelpdesk

pushpak.lele Thu, 12/26/2013 - 00:22
User Badges:

Hi,


Now i have removed cluster and trying to register phone with cucm 8.6 .( Added manually )


Phone model is 7906g and cucm is 8.6.


Still its showing unknown in cucm .


Do i need any device package for registering phone to CUCM.




Thanks And Regards


Pushpak

Aman Soi Thu, 12/26/2013 - 03:00
User Badges:
  • Purple, 4500 points or more
  • Cisco Designated VIP,

    2017 IP Telephony

Hi Pushpak,


7906 is supported from CUCM 5.x and above.


Have u added the correct MAC addressof 7906 in CUCM ?


secondly what is the firmware u are using for 7906 ? are u facing problem with this model only or other mode phones are also not working.Did u start CCM service on call manager?


I do not think so u require any DEvice PAck.


regds,

aman

Actions

This Discussion