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New Member

Unity4.0(5) and Cisco IP Phone 7912G

i have CCM 4.1, Unity 4.0(5), 7960's, 7970's, and 7912G's ip phones, whenever i login to the voice mail the 7912 ONLY hears a very noisy sound like drilling voice, but if i look at the call monitor status it shows that its playing the greeting. the ccm, unity and all phones are running 711mulaw. i suspected that in a way or another that 7912 only can't understand the codec of the unity???

can someone help

5 REPLIES

Re: Unity4.0(5) and Cisco IP Phone 7912G

Hi -

We also have CCM 4.1, Unity 4.0(5) and 7912G model phones in our environment. We use G.711 codec and have not experienced the problem you describe. What phone load are you running? We are running:

App Load ID CP7912060100SCCP050315C

Boot Load ID LD0100BOOT021112A

Software Version 6.01.00(050315C)

Hardware Revision 0x0002 0x0000

Serial Number INM072267MV

Product ID CP-7912G

H/W Features 0x00000003

BTXML Cards Version LD04-25-2002#0

Ginger

New Member

Re: Unity4.0(5) and Cisco IP Phone 7912G

Hi,

by the way my CCM System Version is 4.1.(3) Only

and the OS Image from the MCS Version Utility is 2000.2.7

is that cuase problems??

Re: Unity4.0(5) and Cisco IP Phone 7912G

Hi -

The minimum OS version for CCM 4.1(3) was 2000.2.6. So you should be OK. I don't think the OS version would affect the voice quality of your 7912G phones. Have you posted this question on the IP Telephony forum yet? You may get better/more responses. When I posted our earlier phone load version for the 7912G, I forgot to mention we are only Skinny at this time (SCCP), not SIP.

The 7912 default load for our CCM 4.1(3) is CP7912060101SCCP050429B. Also, you might be able to run the Quality Reporting Tool to get some data of value for you and/or TAC - here is a link to the troubleshooting guide for the 7912 -

http://www.cisco.com/en/US/customer/products/hw/phones/ps379/products_user_guide_chapter09186a0080403baa.html

Ginger

New Member

Re: Unity4.0(5) and Cisco IP Phone 7912G

Hi,

I have the same problem with CCM 4.2(1)sr1b, Unity 4.0(5)and 7912(CP7912080002SCCP060817A).

Try setting Gratuitous ARP disabled.

Umberto

New Member

Re: Unity4.0(5) and Cisco IP Phone 7912G

Hi,

in fact the problem solved by integrating the Unity with another new Domain controller and Exchange server.

i think the problem was from the existing DC and Exchange.

so i advise you to install a temporary Active directory and exchange and do a fresh integration

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