IP Telephony and Phones

May I know the pros and cons of CUCM cluster over WAN. I would like to know real time situation who already implemented. I heard this design approach there will be possibility of inconsistency in database .. is it right? routing and firewalling shoul...

Hi All,We are using Jabber on premises, I would like to check this scenario is supported or not. When there is an active call on jabber client the call needs to move it to desk phone without disconnection. 

I have put call forwarding on my Extension (Forward to  Mobile Number in case of no Response.) either someone call from internally or Externally.  Now If someone call me from inside the Office (Ext e.g. 212 to my Ext 220), call forwarding is WORKING ...

I am developing a JTAPI application via the Jtapi Jar file, The jar version is 10.5.In this application. I need to get the Provider  provider = (CiscoProvider) peer.getProvider(providerString);I wrote the above code to get the provider. This code wor...

Hopefully someone can answer this.  I have an existing cube with one provider configured and working just fine.  I have been tasked with creating another cube at another site coming back to our CUCM 11.0.  This is done and configured.  In testing out...

Hi all: I'm in the middle of a deployment involving @ 300 phones for this site.  We are doing more sites coming up with over 1000 phones and I'm running into what I think is a limitation of the Activation Code Onboarding service on CUCM 12.5.1 SU3. W...

On configuration page of older products (SPA5xx) there are two types of syslog servers (syslog and debug) and numerical "debug level". In CP78xx (3PCC-multiplatform), there is only "syslog server" and drop-down list "debug level". Nevertheless, setti...

Hello Everybody,My Customer installed CUCM v12.5 (Publisher/Subscriber) and Two Voice Gateway ISR 4331,the Employees of this Cusctomer, each one has own Cellphonethe dial plan of these cellephone's numbers : 0661XXXXXXthe Customer wants that if Someo...

Here is a fun one.  I am running Unity v12.5.1.11900-57, an upgrade from 11.5SU6 a few months ago.  We have calls coming in from 2 CUCM SIP trunks in a route group, circular pattern.  I just noticed after a customer call that the secondary server is ...

Hi Is there any way that enable us to join into Microsoft teams meeting invitation from my audio conference set 8831 ?We need to dial IP , We don't need to dial long distance numbersI see both B2B (Business to Business) with expressway and also CVI (...

my outbound fax calls to pstn doesn't work...please see call flow belowfax server--SIP trunk--cucm---mgcp gw--pstn Internal calls are working fine.Invite-100 trying--183 session in progress--UPDATE--481 call doesn't existI would appreciate if someone...

Hello All,I am planning to deploy the CUCM, IMP, & CUC clustering over wants to provide HA in case of a site failure. In the same setup, we need to have an expressway also clustered over the WAN. We are using not using Expressway for the MRA. It is b...