Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1397 IP trunk service 
20
This is where your AAR or ARS route pattern comes into play. Typically, a route 
pattern for an IP trunk group uses the IP trunk group as its primary route and 
assigns one or more conventional trunk groups as alternate routes. Whenever the 
IP trunk group is blocked, DEFINITY ECS automatically routes its traffic over 
one of the alternate trunk groups you’ve...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1398 IP trunk service 
20
PSTN Example
For example, say you create trunk group 10 and assign its members to the first 12 
potts on the IP trunk circuit pack. Then you create a route pattern (for example, 5) 
with trunk group 10 for the first route preference and the trunk group for PSTN 
access for the second route preference. On the ARS analysis form, telephone 
numbers going to remote site...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1399 IP trunk service 
20
Network issues
nLucent recommends that you avoid more than 3 consecutive analog voice 
to data pack conversions on voice calls. Repeated compression and 
decompression of a voice call may seriously degrade sound quality. 
nIP trunks can be used in Distributed Communications System (DCS) 
networks, but you’ll need a separate board, such as a C-LAN circuit pack, 
to...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1400 IP trunk service 
20
Call Detail Recording Logs
The DEFINITY IP Trunk application can create Call Detail Recording (CDR) 
logs on the IP trunk server so that you can retrieve the records from your LAN. 
However, CDR files on the IP trunk server are not backed up, and you have to 
manage both the IP trunk CDR file and the CDR logs on the switch. If you don’t 
need to access IP Trunk CDR...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1401 IP trunk service 
20
Quality of Service Logs
The DEFINITY IP Trunk application allows you to log Quality of Service 
statistics. 
Quality of Service (QoS) data is logged into flat text files. In Windows NT, these 
files are stored in the C:\Its\log\qos directory, by default, and you can specify a 
different location. The Service Logs property page of Configuration Manager 
indicates the...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1402 IP trunk service 
20
Make sure that QoS monitoring is enabled for the line pool of interest through the 
Properties dialog box under the Quality of Service tab in Configuration Manager.
To view the file, in the Windows NT Explorer, find the log file directory and 
double- click the appropriate file qos_ yyyymmdd_ hhmmss. log.
Each record in the QoS file is 65 bytes long and contains...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1403 IP trunk service 
20
Making phone calls with computers
H.323 is a set of standards for transmitting voice calls over an IP network. A 
number of Windows-based applications allow telephone calls to be made from 
one H.323 compliant PC, with a microphone and speakers or headset, over the IP 
network to another H.323 compliant PC. The DEFINITY IP Trunk application 
supports H.323 telephone...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1404 ISDN service 
20
Related topics
Refer to the DEFINITY ECS Administration for Network Connectivity for more 
information on managing IP trunks, including complete administration 
instructions.
Refer to ‘‘
IP Trunk Configuration Manager’’ on page 736 for detailed 
descriptions of all the fields in Configuration Manager.
ISDN service
The Integrated Services Digital Network (ISDN) provides...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1405 ISDN service 
20
nGeneralized Route Selection (GRS)
nCall Identification Display — Calling Party Number (CPN) and Billing 
Number (BN)
nAdministered Connections and Access Endpoints 
nInterworking (a mixture of ISDN and non-ISDN trunks and stations)
nWideband Switching (H0, H11, H12, and NxDS0 — only ISDN-PRI 
supports this.)
nQSIG Multivendor Connectivity
nLookahead Inteflow
nLookahead...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1406 ISDN service 
20
Transmission rate and protocols
In ISDN-PRI, the transmission standard for layer 1 (the physical layer) is either 
DS1 T1 or E1. The DS1 T1 (used in North America and Japan) is a 
digital-transmission standard that carries traffic at the rate of 1.544 Mbps, and the 
E1 (used in Europe) carries traffic at a rate of 2.048 Mbps. The “D” (data) channel 
multiplexes...