IP Telephony and Phones

I am using the realtimeservice2/services/RISService70?wsdl with python to get the phone registering status from CUCM 10.5.but the result shows lots of phones have unregistered status and they are different from CUCM web shows. I can see the phone sta...

Hi all,we met an ISDN error below, Could you help to provide any suggestion. #show isdn statusGlobal ISDN Switchtype = primary-4ess%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may not applyISDN Serial0/0/0:15 interfacedsl 0, in...

Hello, I need to configure No Answer. Busy for a phone to ring to 3 different phones in CUCM instead of just one number.  Can someone tell me the best way to go about this?  Thanks,  All replies rated!

Hi, I am trying to configure roughly about 800 phones for a new migration and I am having issues when trying to Import/Export configuration to add new DNs to some of these phones. I created a CSV file which contains the right header for the Phone But...

I use ATA's to connect fire alarm dialers for emergency monitoring. until now they have been working fine. What I am being told is the voltage is not enough for the dialers to be able to dial out. The needed voltage is 48 to 52 VDC. We get readings o...

In My voice gateway, i am observing flapping in isdn in only few seconds, i checked with Service provider they informed me to set threshold to ignore that flapping. can anyone helpme out.     073159: Nov 16 13:52:24.608 IST: %ISDN-6-LAYER2DOWN: La...

Can CUCM auto hang up a call after a defined time (30 min for example)? Thanks!

Hello    I have a 20 years old machine using a phone voice over VOIP on ATA122 working fine but can´t send a MULTITONE signal (DMT) over the ATA so can´t work 100%. I tried G.711 some fax or modem option but nothing. ¿could you please help me? This t...

Is It possible to change the default sip firmware on cp-7811 to multiplatform firmware upgrade so we can use it with 3rd party platform 

Hello, On Cisco CP-8851 when my manager intercoms me I pick up the phone to talk to him. However, I tend to forget that I have to press the intercom button (actively clicking a picking up button). Basically, I want to the intercom to work like a phon...

Hi All, I have cisco cp 7821 with sip version sip78xx.10-3-1-12. im trying to register the ip phone to mitel system but it will not registered. May  i ask for your help/recommendation about this case. Thank you very much