We are having a weird problem with our SIP service from Airespring.  Basically, what is happening is that inbound calls will get disconnected after 16 minutes.  We are running CUBE on a 2851 with 15.0 code.  Has anyone had any experience using Airesp...

Can anyone please explain how control traffic (routing protocols, HSRP, L2 signaling, etc) is handled by a router in conjunction with a QoS policy?  I'm looking for specific references please .  I can't seem to find anything that is clear about the s...

I am trying to find out some exact details about what happens during a DHCP conversation between a client, server, and relay agent.  What I need is: what is the size of the DHCP packet in all forms - initial discovery from client, relay agent to serv...