IP Telephony and Phones

Hi, I have a customer who want to use existing Cisco phones on an Alcatel IP-PABX. In order to use these Cisco IP phones on, they would need to be converted to SIP mode. I have the phone models and the current firmware attached. Can you confirm if th...

Hi All I have a problem.I have a CUCM 11 and H323 PRI E1. For outgoing call, the follow message is show it: Requested circuit/channel not availableHere a ISDN Q931 debugSep  5 14:33:37.771: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x3470  ...

I'm looking for end user training videos for Cisco CP-8841 IP phone, I cannot find them anywhere on the site. Can someone point me in the right direction. J

Our call back feature relies on the agent to press "any digit" to place the call back to the customer.    Pending call backs are presented in our queue as calls waiting, by design there is no way for the agent to differentiate a live call that is wai...

Hi,I would like to assign two PSTN numbers to be called from a specific DN.For Example, DN = 112 should only make calls to following numbers only.+256700400100+256700400101 Thanks in Advance,Nooruddin

Dear Community, I have configured three CSS. HQ-EXEC(international,national and internal),HQ-EMP(national and internal),HQ-OPENAREA(internal). HQ-EXEC can call all extensions but cannot receive calls from HQ-EMP and HQ-OPENAREA. HQ-EMP can call HQ-OP...

Hi,I have a setup like shown below:IPPhone >>CUCM>>(SIP Trunk)>>Voice Gateway(ISR4351)--PSTN(ISDN PRI)Now the CUCM is working in mixed mode and Internal calls are using SRTP. We have only one internal Third-Party CA as a Root CA and there is no Subor...

I have layer 3 routing enabled on a Cisco 3750 switch and I have a Cisco 1921 router connecting to the public Internet. Traffic from clients is first routed to the Cisco 3750 switch, and then out the 1921 router. Where and how would I set DSCP markin...

Hi,      I'm trying to integrate a CUCM 11.5 with an LDAP like this:      - One forest      - Multiple domains connected to the forest (for example, avvid.com and voice.com)      - Each domain has UPN suffixes, applied to the users, for example:   ...

Hi,I have configured Dlink DP-150S IP PHONE using SIP protocol and all is working fine.Only issue i am having is Randomly IP Phones start sending missed calls (two rings) to each other many times in a day  then stops and starts again with another num...

I have a requirement to configure the CUCM to alert administrators in the event of a session records system failure. I am fairly new to CUCM and we are running 8.6.1. I have no idea how to send these records to people or where to go to in CUCM/RTMT/C...

Hi, I am trying to create a CTI app that can answer, hangup, hold retrieve Cisco UCM Calls.I am using javax.telephony.Connection.disconnect()While incoming calls that are answered and can be hung up correctly, calls that are not answered do not get h...