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Community Member

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

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

4 ACCEPTED SOLUTIONS

Accepted Solutions
Community Member

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

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,

Cisco Employee

Re: IP phone communication bet. 2 different versions of call-man

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

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
VIP Super Bronze

Re: IP phone communication bet. 2 different versions of call-man

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"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Purple

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

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

18 REPLIES
Community Member

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

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,

Community Member

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

Hi,

Thanks,

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

Thanks And Regards

Pushpak

Community Member

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

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

Cisco Employee

Re: IP phone communication bet. 2 different versions of call-man

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

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
Community Member

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

Hi,

we were making configuration mistake in call routing group.

Now it working properly.

Thanks for the help

Thanks And Regards

Pushpak

VIP Super Bronze

Re: IP phone communication bet. 2 different versions of call-man

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"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Community Member

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

Hi,

thanks for the help,

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

Thnaks

Pushpak

Community Member

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

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

Purple

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

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

Community Member

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

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

VIP Super Bronze

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

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"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Community Member

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

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

Cisco Employee

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

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.

Br, Nadeem Please rate all useful post.
Purple

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

Hi Pushpak,

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

regds,

aman

Cisco Employee

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

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

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
Community Member

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

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

Purple

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

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

Purple

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

Hi Pushpak,

my mistake for Device PAcks

I have checked and found that u require DP for loads 9.3(1)SR1 and 9.3(1)Sr2

check the device compatibility matrix as per the phone firmware u are using.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/compat/devpack_comp_mtx.html

regds,

aman

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