IP Telephony and Phones

Hi - I am looking for information on comparing all three gateway protocols above, can anyone suggest a link to a document on these or alternatively share your views on which you think is best and why?Thanks

We have a 5 server cluster - in a scenario where the publisher has a failure will one of the subscribers assume the role of publisher until the pub can be restored?  What is the procedure?  Version is 7.1.5Thank you

I am trying to get an 8961 phone to work with a Plantronics Savi 440 USB headset and I am running into an issue.  When I press the headset button to go off-hook I get about a second or two of dial tone and then the phone automatically goes back on-ho...

Hello,i configured the cme on my site with onramp and offramp script.i had send the tiff-file i got from my uc520 during onramp, this file is working fine.now i tried to convert a website to tiff-file, i used pdf-creator (www.pdfforge.org).i could se...

One of my branch office have 2901 router with four FXS connection. I have configured MGCP gateway first with my CUCMBE, but as I need call supplementary features such as call pickup and call back, I have converted those endpoints as SCCP. But now the...

IP phone get ip address from dhcp server (voice vlan and ip-helper) when connected to an access switch, but without the CUCM it will keep trying to register with CUCM. My question, in this situation can the ip phone (without registered to CUCM) ping ...

Hej.Is they a way to have the CUCM to change the devicepool and CSS on a ip phone from the IP adresse.I have some 69xx phones that i would like to auto registre, and I want them to get the right DP and CSS accouding to they IP adresse (Network). I ha...

Hellowhen i backup my CUCM i get the following error messageCCMBUK30SRVCALMGPLATFORM100SUCCESSWed Sep 14 08:48:07 EEST 20112011-09-14-08-48-07_b_buk30srvcalmg_ccm_platform.logCCMBUK30SRVCALMGCLM100SUCCESSWed Sep 14 08:48:09 EEST 20112011-09-14-08-48-...

HiProblem i have is that i have a CUCM 6.1 with a SIP trunk to a 3rd Party Telco ,the calls work fine across the trunk but when i force the trunk to use MTP the following happens on the display of the phone ,it will display To 0823333333             ...

HiI have a CUCM 8.5.1 Install environment, I am receiving "host not found" after when I select extension mobility from the services option. Have you seen this problem beforemy EM service URL defined is http://10.0.0.7:8080/emapp/EMAppServlet?device=#...

I have been fighting problems with CDR Analysis and Reporting for several weeks.  Initially, my publisher crashed and I had to re-install / restore everything.  Once I had the machine back up, CAR wasn't working.I was running CCM 4.1(3)sr8a.  This pa...

Hello,I'm looking for some help with options on remote users having the ability to have a Cisco IP Phone in there home office and connect to our company. Currenty we have Unified Communications Manager 8.0. We are budgeting in the furture for a Cisco...