Unified Communications Infrastructure

Hi All, And thank you in advance....  We have a legacy H.323 Tandberg device (not connected through a GK or anything) which we would like to join to our WebEx meetings.  We're aware that's possible but WebEx meetings we think seem to have a range of...

Hi All, And thank you in advance....  We have a legacy H.323 Tandberg device (not connected through a GK or anything) which we would like to join to our WebEx meetings.  We're aware that's possible but WebEx meetings we think seem to have a range of...

Hi What happens to the phones if the callmanager.pem and tvs.pem expires? Shouldn't the phones stop working as the trust chain is broken? I have read a few nice howtos on how to fix this but none of them says what happens if they expire. https://s...

Hi all, I've configured collaboration environment with the following components - CUCM, IM&P, Expressway Core and Expressway Edge. When I try to login via Jabber directly to IMP (inside corporate network), Jabber client logs in successfully. However,...

I had to power off during a VM installation of CUCM 8.6.2 (forgot to disable the NIC to avoid having duplicate IP).  Now, at power up, it gives me this error: Installation failed.  Restart Install to recover from failure. I tried resetting the VM, ...

In order to upload ISOs to my VMWare host I usually traverse a 100Mb switch and an ASA5505.  This is painfully slow so I figured that temporarily putting my laptop in the same VLAN/subnet as my VMWare hosts would speed things up since my core switch ...

Hi, I am currently building a UC lab and I have noticed when I use the Jabber Client for Ipad when I add someone from another organisation I see presence and am able to IM that person however I see no call option which leaves me having to manually di...

Hi, I'm trying to configure a SIP trunk (from sipgate) to my Lab CUCM in a virtualised environment. Has anyone got any tips? I'm assuming I'd need to terminate the SIP trunk on a router which I'd hope to virtualise on GNS/UNetLabs. Any help is appr...

Hi, I installed cucm 11. I want to register Voip provider with SIP Trunk. (register mode) How can i do over CCM ? Best regards Ali

I am hoping that I am simply missing this but we just experienced an issue with our SBC that caused about 600 calls to fail. this is about 50% of our total call volume and Prime Collab didn't make a peep. I am running version 11 but is there a thresh...

I'm wondering if anyone else has noticed this.  At times, I will cancel a line in PCP. Do a user sync and try to add that line again and it says its in use. I check the 'Manage Directory Numbers' section of PCP and it does not show up.  If help desk ...

hello team, we are panning to upgrade customer platform from 9.1.1 to 10.5.x of below component cucm,uc, attendant console, ios,uccx.my doubt is from where i canstart, which one i start upgrading first.please guide the phase of migration which wont b...