IP Telephony and Phones

I recently moved a location from an old AT&T PRI to their new IP Flex PRI. I lost inbound caller id. I'm curious if AT&T is sending me something different. How would you go about troubleshooting? The gateway is a 2811 running MGCP on CUCM 8.5.Thanks!

I have a Cisco 7945G phone that I have setup with a VPN profile so it can be used remotely.  This device was configured properly, tested at multiple locations and implemented.  This device worked fine for several months but recently the end user has ...

PHONE:  Cisco IP Phone 7941 or 7961SOFTWARE:  Cisco Unity Express Version 3.1PROCEDURE I'M PERFORMING:  Phone is connected to switch using the 10/100 SW port.  Phone turns on displaying the correct date/time and company name.  I compared all the sett...

Dears,I have a sip trunk to avaya systems, calls flow from cisco to avaya is perfect no encryption, when avaya ipphone try to initiate a encrypted call to cisco ip phone the call fails becz cisco ip phone do not about encryption,i want to know is it ...

My company is trying to set up an alert system where a mass voicemail can be sent out to select groups in the event of an emergency. The process is pretty straight forward. I was going to allocate a DID extension that routes to Unity and allow the us...

Hello folks,I am having some trouble with calls on the CUCM intercluster trunk (non GK). Calls from Cluster-A (v8.0.3) to Cluster-B (10.5.1) are working fine but when Cluster-B calls someone in Cluster-A the call gets disconnected after 3-4 seconds w...

Hi,We are struggling to get some  Ericsson Dialog 4425 ip phone setup with VLANSI have Ericsson Dialog 4425 ip phone and cisco catalyst 2960 switchWitout vlan avrything work fine, but I need to setup vlan in the networkIp phone (vlan x) and user desk...

Hello Everyone,I am working for a client which is requesting the following Unity Connection setup:Mon-Fri 9a-5p, Incoming calls hit System Call Handler with ext. 4000After 5 pm on Weekdays and all day Weekend, the calls need to be transferred to an a...

When someone calls from external numer and I have stored contact on phone (cisco 7940), It's display only number not contact name. How I can change it, i try find answer on documentation but I didn't find anything. 

We have 8941 SCCP phones that do not re-register if a PC/Laptop is connected to phone and we shut/no shut the Cisco switchport. The phone loses its default gateway and cant register. Weird. Any one seen before?Rich

Hi, The time stamp on our Cisco phones seem to be 5 minutes ahead (phone time 12:36 while real time is 12:31). Phone models are 7960 and 8961.   Export of 'utils ntp status' : ntpd (pid 7620) is running... remote refid st t whe...

Is it possible to configure when i dial out to extension instead of ringing i need to setup a song.

hi to all..we've installed ATA 187 in CUCM 7.1(5) for fax services..before ATA 186 EoS, our client used ATA 186 and now they've bought bunch of ATA 187's..so, on ATA 187 we're receiving fax sucessfully, but we cannot send faxes towards PSTN..since AT...