Package Types
A call connection involves a series of events and signals, such as off-hook status, a ringing
signal, or a signal to play an announcement, that are specific to the type of endpoint
involved in the call.
MGCP groups these events and signals into packages. A trunk package, for example, is a
group of events and signals relevant to a trunking gateway. An announcement package is a
group of events and signals relevant to an announcement server. These packages are
enabled by using the mgcp package-capability command. MGCP supports the following
seven package types using the provided command example:
■ Trunk: mgcp package-capability trunk-package
■ Line: mgcp package-capability line-package
■ DTMF: mgcp package-capability dtmf-package
■ Generic media: mgcp package-capability gm-package
■ RTP: mgcp package-capability rtp-package
■ Announcement server: mgcp package-capability as-package
■ Script: mgcp package-capability script-package
The trunk package and line package are supported by default on certain types of gateways.
Although configuring a gateway with additional endpoint package information is
optional, you might want to specify packages for your endpoints to add to or override
the defaults.