IP Telephony and Phones

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A big number of 7821 phones are now automatically going on speaker on every call, I've tried resetting all settings with no fix. anyone with ideas on how to fix this issue please

Emmy by Level 1
  • 1898 Views
  • 7 replies
  • 0 Helpful votes

Hello Everyone,   First off I understand that I have outdated equipment, but at this time and as a learning tool this is all that I wanted to spend. I will be honest I have always had a liking of Cisco telephony and wanted to get my feet wet. Althoug...

Hi,we have a cisco 3825 with cme 7.0.On the router is a e1 and some fxs ports installed. Now we have some trouble with a fax.Networkclock is fine, no slips!card type e1 0 0network-clock-participate wic 0 network-clock-select 1 E1 0/0/0voice service v...

s.zink by Level 1
  • 1240 Views
  • 3 replies
  • 0 Helpful votes

hello, we have a sip trunk from ITSP  the authentication is only by IP we have a cucm >>>> cube >>>>>ITSP the cube configuration as following: version 15.4service timestamps debug datetime msecservice timestamps log datetime msecservice password-encr...

Hello Guys,   I want to setup conference call system in my office using CUCM. This will allow us to call vendors or they can call our line during a conference meeting.   Currently we have a Cisco ISR 4321 with a 1MFT-T1/E1 module and a PVDM4-32 modul...

Daniel5 by Level 1
  • 2348 Views
  • 10 replies
  • 0 Helpful votes

We recently faced a sip NAT issue. and I would like to get some insights for this problem. call flow: Avaya phone system >> telco IPBE device >> ISP telco IPBE is doing the SIP NAT. The call coming into the telco IPBE device: The invite is from 10.2...

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