IP Telephony and Phones

Hi we are having issues with polycom phones with dhcp issues (running on server / switch) on the 6800IA (connected to parent 6880 switches) - I cant see them on cdp (Sometimes) these phones are managed externally by a third party company. the phones...

I have a SIP trunk setup and it is communicating with another SIP trunk and I believe there is a setup issue because video is not passing through them and audio is only one way. I need to collect the packets to see the details of the setup. I need...

Hi, since our provider can no longer provide us 6921 phone he offered us 7821 phones. but as I read they are not supported by ccm 7.1.5. So is there any workaround? Best regards,  Ivan

Dear all, I am struggling to register Avaya ip phones to cisco cucm 8.5 Cucm version:8.5Avaya ip phone model: 9670 I entered all the details static ip, callser, file serv, router and vlan on avaya ip phone manually of cisco call manager now screen s...

Hi Cisco Techs, Cisco Voice network module NM-2V uses  various IOS's including 12.3(2) T for a 2691 router (see chart below) from link.... http://www.cisco.com/c/en/us/support/docs/interfaces-modules/nm-2v-two-voice-fax-interface-card-slot-network-mo...

Dear forum users.   Below is one of my VoIP dial-peer in my CUBE to my CUCM cluster:-   dial-peer voice 17702 voip  description removed for confidentially  preference 2  destination-pattern removed for confidentially  progress_ind setup enable 3  ses...

We had installed CUCM 10.5 in B-series server successfully, when we try to install unityconnection with same DVD,  it give error that "product not supported in the current hardware" unity connection as attached screenshot, please advice.

Hello, I have CME ver 10.0 and some phones sccp and sip , i configured speed dial on phone 7821 and when i press 1 then speed dial nothing happened why ? tftp-server flash0:kern2.78xx.11-0-1-11.sbntftp-server flash0:kern78xx.11-0-1-11.sbntftp-server...

Hi, I got a UC540 box that has IOS corrupted, now I need a valid IOS. I read the UC500 series is EOL, EOS since 2014, so I am wondering where to find free for download it so I can play with it after, so I gain some hands on experience on unified comm...

When going off-hook on an analog phone attached to a VG310 or VG350 FXS port, I receive inside dial tone. I dial 9 and continue to hear the same inside dial tone (frequency). I can continue to dial the outgoing number and the call will go through. I ...