IP Telephony and Phones

We have a Cisco Callmanager Business Edition 8.5 and a MS Lync Server 2010, both are connected with a SIP Trunkand normal calls from the Cisco system to the Lync Server works without any problem.But if a Cisco User calls a Lync User, only the the nam...

Good day!My CCME 2901 is connected through trunk link h.323 to PBX Panasonic and PBX Pana is connected through ISDN/PRI30 line to ISPHere is my diagram...So,  when i dial local number 1XX of Panasonic PBX, from CCME 2901 every thing is good, but if i...

The phone model 7975 having problem with registering in call manager.when connecting phone in the network.first it is getting powerthen on the scrren showing UPGRADING.Tthen showing AUTHENTICATION FAIL.What could be the cause?thankskavi

Hello Everyone,I am having a hard time putting up a SIP trunk Between CUCM 8.5 and Call manager 4.1.I am able to ring from 8.5 to the phones in 4.1 clusters. But as soon as the call is picked up from other 4.1 cluster phone, the call drops.I gone thr...

Hi guys,I have a CME configured with PSTN in G711 for all phones. Customer wants SIP trunk in G729. Could phones speak G711internally and G729 with SIP calls without involving DSP ressources?

Having some difficulty with the DND softkey not displaying any status change when it's pushed.  Users do not know whether or not they have silenced their ringers.  Anyone else have this issue and/or have it corrected?Using 15.1(4)M2 / CME 8.6 Phone l...

Hello all,I need to update the NTP settings on our Call Manager and our Unity Connection servers.  I know where to make the changes but my question is, Will I need to reboot or restart any services on either switch?I have done this before but I can't...

I understand how to setup the GUI and use HTTP to access it on CME but my security team has asked me to turn off HTTP.  Can CME gui be reached via HTTPS?  Is so does anyone have a link to how that is configured?Thanks                  

Hi,I use call pickup groups with notification (CUCM 8.6.2). Notification (Call Pickup Group Notification Policy) is set as Visual Alert. All works fine, but the only one problem is, that the notification which is displayed on phones is set on 10 seco...

I am trying to restore a Unity connection vers 2./1 (6.1) and the restore wizzard comes back with no features to restore. I have two files and all is there,I copied and exploded and all files are there. any Ideas?                  

hi, from what I've read on this forum, to register a phone Cisco ATA 187 is necessary to create it as a SIP phone.Do you only need one as SIP phone to lift?I searched the ATA Firmware 187 for cme but apparently not availableAny input is valuableregar...

Hi,I have a 2811 ISR with 12.4 IOS running on it. I have inserted VWIC-1MFT-E1= on the ISR and it is getting detected. In show inventory the VWIC-1MFT-E1= is showing up. But it is not coming up.Thanks Fawaz