IP Telephony and Phones

Hey All,I have a project in the coming weeks to move ~2,200 Lines Over from a CM6 to 16 VG450s.Back in 2017 I was able to migrate ~125 analog lines from a legacy Nortel system to a VG350.  I have some of my files from back then but nothing is clickin...

Hi,I have a Cisco CCME with a SIP-Trunk to an external provider. Incoming calls over this trunk are forwarded to a Cisco Unity Express IVR (running on a SRE), which - depending on the users DTMF choices - forwards the call to the chosen internal exte...

We would like to use a two features Trust Relay Point (TRP) and a Cisco Unified Border Element (CUBE) co-resident on a same router ISR 4431. Does anyone know if there are any limitation and/or impact (CPU, RAM) ? Is there any documentation available ...

I have the Plantronics CS540 and a Cisco phone 8861.  The headset turns off about 30-45 seconds after a call is started.  My e-hook headset is enabled which is what other users with this problem have encountered. Any advice will be greatly appreciate...

When trying to press * or 4 during cisco greeting from an external caller it is getting ignored. Internal works fine.I read somewhere about the voice gateway dmtf settings but I believe I have all the correct info.Here is some of the running config o...

My CUCM version is 12.5 and CMS Version is 2.9.5, everything was fine almost two years. Suddenly we are not able to dial CMS Room. I verified and found CMS CFB is not registered with CUCM. Can you please help me to solve this issue.   Saiful Islam

I am from India and purchased a refurbished Cisco 8865 for using at home with my personal SIP subscription. However, the phone kept asking for a QR Code or an activation key. After a lot of searching the web, I stumbled upon the cisco upgrade guide f...

hi everyone    PBX(3xxx) ---- E1 --- CME --- IPT the call from PBX , calling : 3001 ,called : 71665 i want match "num-exp 71... 7171... " , and then match the dialpeer 71000, but is didn`t work , is there something wrong with the config ? pls hlep me...

I have uploaded music on hold and set it to a phone extension in phone configuration under listed field i.e.1) User Hold MOH Audio Source2) Network Hold MOH Audio Sourcebut it doesn't work. Please help!

Are there any 3rd party softphone out there that can be used with Teams as a plugin but setup to register to CUCM?We tested the Jabber plugin but our users didn't like it much. Wanted to see if there was something else out there. 

Hello, Recently had a h323 gateway hacked and fraudulent calls were made out of the gateway. The Gateway has a T1 PRI to telco and LAN ip is private protected by firewall. I am assuming the criminals were able to call the company DID number, enter so...

Hi,my colleagues and I work with Jabber and bluetooth headsets. Jabber does recognize the headsets but the voice you hear is so consumed that you can't understand a word. All other tools like MS Teams etc. work normally with Bluetooth headphones.Did ...

I use an 8851 with one KEM at my work office normally. Have been remote at my home office which is using a Meraki Z3 provided for work network access. Phone works fine when connected to PoE port however the KEM does not. Any thoughts or suggestions t...