IP Telephony and Phones

I am having problems with my Cisco CME. I have a handful off 7925 and 7921 phones. They are randomly just switching themselves off and it is not hardware related (the problem has happened to almost all the phones at random times). I have setup debugg...

Our SIP provider has asked us to modify our outgoing SIP header INVITE messages to allow them to block CLI.The section of the current SIP Header we need to modify looks like this;Remote-Party-ID: "Test" <sip:+44xxxxxxxxxx@10.x.x.x>;party=calling;scre...

Hi list,I migrate a cisco 2811 with E1 card from ccm to SIP/Elastix. The problem I face is that from time to time, I receive the subject error (around 10% of outgoing calls). Call is going through on next attempt (can be one to 3) or by waiting few s...

Hello Folks,Today, received an issue from one of our customer that in their Cisco IP Phone the mute button always indication "Red".. When they do mute on and offWe see it shows "Microphone mute on" and "Microphone mute off", but the red indication re...

Hello,       In my lab I have Cisco Catalyst Express 500 POE switch and vmware workstation 10 with 2 virtual machines Windows 2008 R2 acting as dns server and CUCM 9.1 which is acting as DHCP server as well, both the virtual machines as briged to the...

Hi all, hope everyone is well !!!I am curious if it's posible to integrate CUCM with MS Lync Exchange voice messaging. I understand Unity Connection be integrated with MS Exchange for Unified Messaging. Does anyone know if CUCM can talk directly with...

Dear AllI have CUCM 8.6 PUB and SUB. My PUB b/c of some power issues crashed now all the voice network working through SUB.kindly explain how i will install PUB again and rebuild the databse or it will replicate with SUB.Kindly help!!!!              ...

I have a remote office trying to get voicemails emailed to them after the convert to Office365. They are well aware MWI lights will not be working with this change. I see publication on creating a Smart Host but my Exchange guy does not really know w...

Hello Guys,I have a phone 6921 which un-registers from the CME (2921) every day and we have to plug it off and then plug it back in to have it registered.Any thoughts?Thanks,Asad

We're going to be deploying 20-30 VG224s at each of our hospitals to support patient room analog phones. We've got an IPTel services block consisting of 2 4948's L3 off of the core. L2 trunk and L3 eigrp adjacency (eigrp) between the 2 4948's. We ...

If I try a bulk insert of remote destinations that begin with a + sign (eg +15552125555) I get the following error: "A character to numeric conversion process failed"If i create the remote destination manually it works fine so I know that the string ...