IP Telephony and Phones

Good day, I have a question regarding the use of a POE switch.At this moment we have around 200 IP phones.All these phones use a power cube connected to the electricity.Our switches are not POE so I want to replace them by POE. My question is, is usi...

Hi I have cisco cucm ,There are cisco phones (7906) i just want  to try with asterisk server . so i created two vlans , one for endpoints other for asterisk server . What is the best practice running cucm and other pbx in an enterprise network . Do i...

Dear all, There is a one-way audio problem between 6961 and 6945 phones.All phones are in same network and subnet. All of them are in same device pool, region and using same MRGL.6961 is caller and call three different 6945 phone in sequence.On all c...

Hello,  please i need your help urgently! when two users communicating , if a third person picks up the phone , she can hear the entire conversation of the other two.Bellow my configuration.Best regards

Hello, I've had an open case for a very long time with Cisco.I purchased two CUBE's with the intent to make VoIP call transfers via hookflash.  These hookflashes are supported for FXS-SIP (via sip-ua hookflash-info command) and SIP-FXS (via DSAPP tcl...

 Hi All, I am hoping someone could answer this one for me quickly. I have a scenario during an refresh upgrade to CUCM 10.5(2) where it fails in the install logs with "component_install:807, failed to refresh_upgrade Infrastructure_post components | ...

On my CUPS system (9.1) every minute in the Notifications page in cupadmin, the message: "An audit is in progress and users are automatically being moved to this node." There's nothing wrong with the cluster state (Well,not according to Cluster Topol...

hi all i am having some problems with our CUCM i am unable to add/register a new phone or delete any old ones. I am getting this error "Update failed. System or internal error java.io.IOException " if i go to a device that is registered already and I...

We have a SIP softphone that is connected to an external Centrex loop-start line on an FXO port on a 2811. When the softphone generates DTMF digits, these digits are heard on the line so I know that RTP Named Telephony Events are being passed proper...

Over the weekend something happened and all our 911 calls to Verizon are failing. We have two CUBES (back each other up with our network sites split between them) and 911 calls out both primary CUBES fail along with the backup call that gets retried ...

Is possible to use Ip comuniactor with CME? If so, can any one provide the configuration steps please.