IP Telephony and Phones

We purchased a Cisco 562 wireless headset and are using it with a Cisco 7945 IP phone.  We have tried multiple configuration settings but the user cannot hear the phone ring through the headset if they have stepped away from their desk phone.  Everyt...

Hello all an thanks for your time and expertise.  I'm trying to validate cisco 7945 phones before inserting them into call manager and the validation continues to fail with the following message:2001 WARNING: CSV contains more number of lines than ar...

Hello Guys I'm configuring a SIP Trunk and I don't understand the difference between Reouting CSS and Out of Dialog Refer CSS can somene explain it to me and/or copy Cisco Information about it? For what I have read both are for SIP REFER messages but...

Hi all, I hope to explain this so it makes sense. My sip provider has configured my 2800 for my sip service. 2900 serves as the server for the phones credentials and configuration. at random the sip connection disconnects from my ISP. The 2800 is the...

My ITSP ask me to register CME to his SIP trunk not by usial UDP 5060 port but using TCP 5060.How to do it? CME version 12.0 on 2911 router IOS 15.7(3)M5

Hello I have the cisco 8841 phone and I have the 128 page phone guide and still am not seeing the instruction to activate my voicemail, please help.

So I'm having alittle bit of a senior moment and my google-fu has also let me down.  In short I am looking to stand up some additional hoot and holler instances on some 4K series routers we have.  We don't use it often or in a large scale so anything...

Hi everyone, I have a cluster of CUCM running version 10.5.2.We bought 7 cisco phone 8861 and the suppliers did not give us with the licenses.We asked them for the licenses and they said that we can not have the licenses as our version is EOS and we ...

I am using CME/CUCME 12 and 8861 phones with 12.6.1.  The blf functionality works for a while, and then stops working.  Lights are off when a line is in use, and on others sometimes don't go out after someone hangs up the call.  Rebooting the phones ...

I'm trying to find a solution where we can have an outbound dial peer specific to calling number. What's happening right now is that some of our sites needs to dial 1 to make it a long distance call even it is a local call and that is okay, we do not...

I have POE switch and still my CP-8800-A-KEM won't power on with CP-8851 phone. Its only 1 KEM, am I missing something?  TAC hasn't proven much help.  Its a Dell POE IEEE 802.3af switch, 15.4 watts is more then enough power as my other IEEE 802.3af s...