Is there a way to enable web access for Cisco 8851 IP phone when it is NOT registered to CUCM? We are troubleshooting a 8851 phone registration issue with MRA.  I created the PRT from the phone.  But web access is disabled by default.  I cannot get t...

Have UCM and MRA hosted by Cisco. Everything was working fine until recently.  Remote IP Phones (e.g. 8851) cannot register.  From the phone's message menu, it's trying to download the configuration file (SEPxxxxxxxxxxxx.cnf.xml).  Keeps trying and t...

I was trying to understand what exactly does the "mode border-element" do (under "voice service voip"). Yes, the short answer is "to enable CUBE".  But what *exactly* does it do?  For example, without "mode border-element", would there be any command...

Is there a SIP test tool that can customize the SIP request line? For example, VVB adds custom tag "aai" in the request line.  Is there a tool I can emulate this (add customized tag to request line) without installing VVB?  Thanks! INVITE sip:1234567...

The "Cisco-Gucid" header exists in one call leg (first appears in the "100 Trying" response), but not in another (a new INVITE).  I'm trying to use SIP profile to copy the header over (from dial-peer 2010 to dial peer 9012). But the result was - CUBE...