IP Telephony and Phones

Hello,  Please i need help, Actually i have a cisco phone 3905, I need to load the firmware into in my router (telephony-service). I've tried to upload a tar file but i can't find my phone in the list when doing "Load?" command. Somebody help please....

Greetings Everyone, I am trying to implement SIP trunk thru our current data circuit with below call flow. I was able to get the SIP registration with SIP carrier and when I make a inbound call from my cell phone to one of the SIP carrier provided DI...

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:   ...