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

[pushpak.lele]

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

[Jaime Valencia]

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]

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]

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

[Aman Soi]

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