IP Telephony and Phones

Have a customer that need to upgrade to 14.0 but has a bunch of the CP-69xx phones in the network. The release notes say: "The following table lists Cisco endpoints that have reached the End of Support date, but which are not yet deprecated. Unlike d...

I got a couple 9951 series phones brand new in boxes at a garage sale will they work at my place of business

I have installed a VG224 in a naked lab 19" rackWhen temperature goes high three fans are very noisyIs there any workaround ? i.e. raplacing fan with different brand/model , or reducing speed/treshold via configuration , or fool pwm rpm managing , or...

We have 3 node CUCM cluster with a PUB and SUB at HQ and a SUB at the DR site. We also have CUBE setup with SIP to the PSTN on a router at HQ and a router at DR. When  I shut down the PUB, calls are not being processed by any of the two SUBs (The SUB...

we are configuring ip phone 8851 in cucm 11.5. we bought expansion module CP-8800-A-KEM. but we couldn't find an option "CP-8800-Audio"  and all lights in  the expansion module are off. our 

Hi I would like to know when enabling CDR & CMR will affect on storage of servers ?

I have a Freeswitch installation with various models of Cisco IP phones whose firmwares have been upgraded to use SIP, all models work fine except the 7942 model. When call is placed through to the 7942 series from other models, there will be no audi...

Hello everdyone!  Running into a weird one!  We setup a new SIP trunk and it's registered and up.  When testing, for either inbound or outbound, the call seems to work, but we get no audio.  I setup the test extension on my Jabber, and when I place a...

Hello, does anyone know if the Microsoft MIC 8JS-00002 headset can work with Cisco VOIP phones. More specifically the Cisco CP-7841 desk phone. I know it cannot connect directly but wondering if there is a special adapter available for compatibility.

The active call dialog/popup occupies 80% of the screen, thereby obscuring the view of the BLF labels underneath. See attached photo of the problem.Is there a way to disable this needless dialog or reduce its size?I don't understand why it needs to b...

Dear Experts we are facing issue with sip trunk to ITSP, incoming calls working fine but outgoing calls not working.getting fast busy tone with "unknown number" on phone display with below message in debug"Received:SIP/2.0 484 Address Incomplete - no...