Core IssueIn some cases, Cisco IP phone users or Plain Old Telephone Service (POTS) users connected to a Cisco IOS® gateway may not hear a busy tone when they call a busy number on the Public Switched Telephone Network (PSTN). This is a problem when ...

Core IssueThere are several reasons for Cisco CallManager to play Tone on Hold (ToH) to an endpoint that has been configured for Music on Hold (MoH):One reason is a mismatch between the codec configuration used by the MoH server and the region in whi...

Core IssueA terminal length configuration value of 0 causes output to scroll by without stopping.ResolutionIf the output of show commands scrolls by without stopping, you can issue the set length command to control the number of lines displayed at a ...

Core IssueBy default, all CatOS Layer-2 ports are trunking in the Auto mode.  This means they send out Dynamic Trunking Protocol (DTP) frames periodically. When you connect this type of port to a native Cisco IOS® Layer-3 port, they do not understand...

What is PAT?Port address translation (PAT) is a function that allows multiple users within a private network to make use of a minimal number of IP addresses. Its basic function is to share a single IP public address between multiple clients who need ...