DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506 Issue 1
April 2000
Features and technical reference
1383IP trunk service
20
IP trunk service
DEFINITY ECS allows you to route voice and real time fax calls over Internet
Protocol (IP) networks such as private intranets, reducing long-distance charges
and giving you added flexibility in routing traffic between sites. Both the origin
and destination switches must have the DEFINITY Internet Protocol Trunk
(DEFINITY ECS) application or Lucent’s Internet Telephony Server-Enterprise
(ITS-E) Release 1.2. DEFINITY IP Trunk application consists of the following
components:
■The DEFINITY IP Trunk software, which routes telephone calls and faxes
over your company’s intranet
■Configuration Manager software, which lets you administer the operation
and performance of DEFINITY ECS service
Both the IP trunk software and Configuration Manager reside on the W indo ws NT
server on the IP Trunk circuit pack.
For information about Internet Telephony Server-Enterprise, contact your Lucent
representative.
Brief description
DEFINITY IP Trunk application can be administered to provide service that
emulates T1 and E1 digital service. Your users dial phone numbers e xactly as they
would for calls routed over conventional trunk groups, including the use of the
Automatic Route Selection (ARS) feature access code (normally 9 in the U.S.).
Here’s how DEFINITY ECS and the DEFINITY IP Trunk application process a
call:
Caller Goes off hook and dials a number.
Origin switch Collects digits, consults the routing table, and sends the
dialed digits to the IP trunk application.
Origin IP
trunk
application
Detects the incoming call and receives the digits sent by the
origin switch. Performs any local digit translations,
determines the IP address of the destination IP trunk server
and sends the call over the IP trunk group to that IP address.