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Media gateway services
Issue 5 June 2008 39
Outside telephone lines
The table below lists which modules you can use to connect each type of outside line. See
Chapter 2: Optional components
for more information about each type of port and media
module.
Physical media — G250
There are various types of telephones and lines supported by the G250 and access ports
provided for their connection.
Telephones
The G250 supports IP telephones and analog telephones. The G250-DCP also supports Avaya
DCP telephones. For information about which Avaya telephones are supported, see
Appendix B: Supported Avaya telephones
.
Telephones must be connected to the correct type of port for the telephone type. Different types
of telephone ports are provided by fixed ports on the G250 front panel. The table below lists
which ports you can use to connect each type of telephone. See G250 physical description
on
page 15 for more information about each type of port.
Table 8: Outside telephone lines supported and ports provided
Line Type Ports
ISDN line ISDN ports on the MM720 and MM722 BRI media modules.
Analog trunks Analog trunk ports on the MM714 analog media module.
Fixed analog trunk port, TRUNK (see G350 physical
description on page 19).
Universal analog ports on MM711.
DID trunk ports with wink-start and immediate-start only on
MM716.
T1/E1 voice lines The T1/E1 port on the MM710 T1/E1 media module.