Instruction manual

Hardware and Endpoints
INTER-TEL
®
5000 ADMINISTRATOR GUIDE – Issue 2.3, September 2007
ITP and SIP Connectivity
Page 83
1. For transfers, the IC or CALL button LED goes out when the user hangs up.
2. Requires a programmable button.
ITP and SIP Connectivity
Endpoints using ITP mode and SIP mode allow users to communicate using the Local Area
Network (LAN) and the public telephone system.
IP and SIP calls can be routed through the Inter-Tel 5000 platform or they can be configured as
members of the same Network Group. If the endpoints are configured as members of a Net-
work Group, they can use the Peer-to-Peer (P2P) audio feature, which is explained on page 85.
TRUNK
Trunk is in
use at
another end-
point, in a
conference at
your end-
point, or it is
unplugged.
Trunk is in
use at your
endpoint.
Trunk is
recalling from
hold or trans-
fer.
Trunk is ring-
ing in, camped
on (waiting), or
in busy trunk
callback queue
to your end-
point.
Trunk is on
hold.
Table 14. Flashing Light Indicators for IP and Multi-Protocol Endpoints (Continued)
Button
Steady
0 IPM
Slow
30 IPM
Medium
120 IPM
Fast
240 IPM
Flutter
60/960 IPM
WARNING
Possible Delay in Local Emergency Response to Remote Sites.
IP and SIP endpoint users should be alerted to the following hazardous situations:
• If an Emergency Call phone number is dialed from an IP or SIP endpoint located at a
remote site that is not equipped with a correctly configured gateway, the call will be
placed from the location where Inter-Tel 5000 Base Server is installed rather than from
the location where the emergency call is made.
In this situation, emergency responders may be dispatched to the wrong location. To
minimize the risk of remote site users misdirecting emergency responders, Inter-Tel
recommends regular testing of MGCP/SIP gateway trunk(s) for dial tone.
• If uninterruptible power supply (UPS) protection has not been installed as part of the
Inter-Tel 5000 system, IP and SIP endpoints will not operate when electrical power fails
either at remote sites or at the main system location.
To place calls during a power failure in this situation, IP and SIP endpoint users can only use
a single line endpoint connected to one of the system’s power failure bypass circuits or a local
endpoint not connected to the system.