IP Telephony and Phones

Hello,Out of my 1,600 devices I have one dept that when I call 911 it calls out to a call center for 911 in Colorado? but the rest of my phones calls our local 911 dispatch office? I have checked the devices they are set up correctly as the working p...

Does the 3PCC/MPP firmware (after factory reset) fallback from tftp to http after trying and failing a few times?I discovered this to be true in my lab, but now on a customer site it just sits there asking to "Enter activation code" after I factory r...

Hi I want to update the firmware on my CP-8851but it doesn´t work as described in the different guides.acctually my main objective was to connect my CP-8851 through placetel, but as this didnt wanted to work so I asumed the former owner erased everyt...

Hi,i am having problems with the oui-enabled voice vlan config on a C1300 switch.Gig 1/0/3 and 1/0/5 both have a phone connected (Unify brand). Both phones show vlan 109 as their voice vlan. Switch config on Gig 1/0/3 seems to work, for config on Gig...

Model 3844-13-1086 Cisco landlines Hi there, A customer called into our store and was perhaps on hold, when the employee answered their call again on the cisco phone, we believe that it broadcast the customers incoming call over the public speaker sy...

I have a ATA 191, connected to UCM 10.5.2  The elevator (an analog phone) is programmed to call an extension in our company to notify that someone may be stuck, and it does that just fine.  The issue I'm facing is when the monitoring station hangs up...

Call is taking one minute to connect between CUCM and CME Router. The CUCM is 12.0 and it is configured as a CUCM Cluster with one publisher and one subscriber node. The call works fine from both sides (CME to CUCM and CUCM to CME).When publisher is ...

I have successfully Applied FAC (force authorization code), but phone prompt for To:UNKNOWN NUMBER instead of ENTER AUTHORIZATION CODE to complete the call, I would like to extend the delay for few more seconds so user can easily enter code before bu...

I have followed the Step-By Step and the video on our CUCM 11.5. We have one Publisher and two Subscribers. “Extension Mobility” does show up when I press the services button. But when I select “Extension Mobility”, it shows it is "Requesting", then ...

Hello,I am in desparate need of some guidance as I do not have a solid grasp of PRIs and how to troubleshoot past the basic troubleshooting steps.I have an ISR 4331 setup with mgcp and using a T1 PRI card to manage an AT&T PRI for customer calling. C...

Hi All,Recently we had to change our distribution switch (Layer 3) and therefore we had to move all the SVIs from the old to the new distribution switch. We did a shut on the old distribution for the Voice SVI and made the new distribution Voice SVI ...

Hello, We have a user that is trying to send fax from Konica Minolta Bizhub C458 using an ATA 190.  It just hangs up, and the bizhub goes into a "waiting to redial" stage.  It's able to receive faxes. I don't know anything about fax machines or ATAs...