IP Telephony and Phones

Hi all, hope someone can assist with this. I have two offices - A and B Currently, there is a IP phone system in office A on 192.168.10.0 /24 network. Office B communicates with office A with the use of a VPN between the two offices and routed dire...

Dear Team, We have one remote site with three phones connected via VPN from main site. the phones are having same configuration as in main site . we are able to make outgoing calls from these phones both internal and PSTN . but we are unable to reach...

i install a CUCM 10 and restore a config from CUCM 8 now there have a feature can't come true. in CUCM 8 there has 4 7941 , all the 7941 second line has a same DN 27004 when a call incoming all 7941 will ring. After a 7941 connect , another 7941 o...

Hello  there, I'm building an app  for the DX650 devices, after i'm done coding and im using Android Studio 2.3 to develop, with targed SDK 23 ,build tools 25 and min SDK 16 i extracted the APK (once as signed and once not signed) put it on a server ...

We have 4 PRI Lines termination on 3 H323 VG. One VG terminates Two PRI Lines. Need a mechanism to check the PRI Utilization over period of Time. What i have found is In RTMT you can monitor the PRI Usage but we have to keep RTMT Counter On and save ...

Hello community, I have a problem with incoming calls in cucm, the issue is next, when I make a call from outside (PSTN) and my IP phone is anwered (internal), I can still hear the ring sound (PSTN) in my cell phone, I´ve inserted the "sh voice call...

Hello All,  We migrated from CUCM 8.6 to 11.5. After the upgrade, A call coming into XXXXXXX123 which is setup as a Cisco phone and then is being call forwarded to YYYYYYY123, The user stated  they used to receive the number of the person calling an...

Hi, can someone please confirm the signaling in terms of isdn,sip and h323 what happens when you hear the music instead of ring back. is it the early media in sip? detaling would be highly appreciated. Thanks   

Hi everyone, I installed CUCM 11.5, and CUCME v7 on same LAN, I have 14 VG Router for Fax configured on CME, Now I want to configure VG Router in CUCM, is it possible to define two management IP addresses in the VG Router, the first of CME and the se...

Only happening with one user.  There is a user who is using 7821 phone. Active Load ID:sip78xx.11-0-1-11 Call manager version :11.0.1.21900-11 When the user  tries to fwd all to an extension, it works fine, but when he tries to cancel the fwd all, ...

I keep on receiving the alert from the Call manager (Publisher) which says CCMLinkActive has gone down to count 1 from 2.The alert clears after around 10 minutes. This has been happening for a few days, but I cant seem to find anything in RTMT about ...

Hi,   we are working with Auto-Registration at the IP-Phones.   We have 1 PUB and 2 SUB in two different locations and also 2 CM-Groups / device pools for the two locations.   When we configure phones manually to device pool 1 then the phones registe...