IP Telephony and Phones

hi there i am facing an issue with ntp. first my publisher got unsynchronized with ntp. pub got sync but sub1 and sub2 and tftp all three servers did not got sync for around 10 hours. cucm version 8.6. i got mails from rtmt for the same. At Thu Oct 1...

Good morning. I' ve the following problem:A call arrive on PRI connected to a cisco voice gateway cisco 2811 with IOS 12.4.24.T1.When the user answer calls and before starting the conversation,  in background I feel some dtmf tones.This is a problem ...

Hi Guys..  iam currently working on SIP trunk issue....one of our customer has sip trunk configured and all there call are routed out by our arsterisk sip server....issue we have got is if the customer calls IVR or conf his dtmf woks fine....but if s...

Hey Guys,I believe this one is a good one.I'm trying to integrate CISCO and Polycom using a CUBE.What i got until now is:1. Calls from CISCO to Polycom are perfectly fine.2. Calls from Polycom to CISCO needs the intervention of a field engineer to se...

Hi All, I am currently facing issue with PRI i can do only 1 outgoing call at time , Service provider tested call on PRI tester its work fine.

Hi all,I have gw configured via H.323 to CUCM 7.1 ... I want users to play Music On Hold from gateway not from CUCM....for this i download music-on-hold.au file into rotuer's flash & did following configuration under telephony service:telephony-servi...

What is the easiest way to put our company logo on the IP Phones? We are on 7961s and CUCM 9.1

We just upgraded to 2960S, POE, 1Gb ports.  The 6941 phones (100mb port speed) work fine by themselves, but when you plug a computer into the back of the phone the speed is awful.  I can plug the same computer directly into the switch and have no spe...

Hi good day,I am configuring a Cisco 2901 router with CME 9.1.I have 2 7965 phones registered.One is showing the correct time whereas one is not.I recognised that they have a slight firmware difference.The one with the correct firmware has SCCP45.9-3...

I have this issue the MTP (suscriber 1) have status Unregistered, What can be the problem?