IP Telephony and Phones

guys I have a user whose jabber chat disappears, if he close the chat and reopen all his chat history gets deleted. thank for your help.

We're running a 4351 with a E160 blade with CUCM 11.5. I've noticed that phones on the voice vlan can't talk to the UCM. Should CUCM be able to work on the same VLAN as the phones? The phones can talk to the router. CUCM can talk to the router. But C...

I'm interested in building a CUCM lab.  I know there are a bunch of threads on this, but need some guidance.  I have vmware workstation and I know the OVA's can be installed on it, but that's the first question.  I don't have the ability to get the s...

    Hi,   we have CUCM cluster version 11.5 and for business partner ship we need to connect to our new partner CUCM also 11.5 over MPLS link to make video calls between two clusters .   each cluster under its own administration and due security conc...

hello Every onei need to make some of my cisco ip phones register through the VPN connectioni have question the requirement for registration through the VPN the Cluster must be in mixed mode? and thir is another requiremnet for vpn connection?

In our environment there are 3 CUCM servers .UCS#1 : CUCM Pub , CUCM Sub-1UCS#2 : CUCM Sub-2When the UCS#1 is down all the phones who registered to CUCM SUB-2  are not displaying Corporate Directory/Speed-dialsCUCM Version : 11.5Hope for your help.Th...

How do i change the ring tone on my CIPC ? 

hi everyone, pls i need help i cant call remote branch sip ip phone on cme from local sccp ip phone on cme using the same dn 307 with proper translation rule in place while an ip phone running  sccp with the same dn 105 local can call remote branch i...

Could you help me understand how to match incoming pots dial-peer with voice-port?I have isdn pri trunks and I need to match evry trunk by using port on dial-peer.it's written: "Voice-port (associated with the incoming call setup request) with config...

Hi,   I have 2 sets of phones, 7821 & 7861. They are both registered at the same site. The 7821 phones work fine, but I have voice quality issues on external and incoming calls on 7861 phones. Callers complain of receivers voice sounding robot-like. ...

busy light come up often on one IP phone only. All the others are woking fine.   Tried rebooting/reseting/reconfiguring the IP Phone, still no avail and DND is not turned on

Hi everybody, I have inherited a Cisco IP phone system and whilst I have picked up some basics, I am stuck with one particular problem. We cannot VNC into computers that are connected through the Cisco IP Phones. Here is what I know:We are running Ci...