Erlang B table and our traffice report

[Jeff1215]

Recently, I'm working on traffic report for our T1 trunk.
Here is a TFC002 result of an outgoing route in the most busy hour:
001 TIE

00100 00100

0000000 00000
0000222 00078
00000 00000
00000

According to Erlang B table, if I choose a 1/1000 failure rate, 16 channels can support our needs...What a huge waste of 100 channels!!!

Am I right?

 

[GHTROUT]

That's correct. However, I am wondering why there are only outgoing calls from your system on these lines? Are there calls that "should" be on these circuits that are routing in or out another way?

Outgoing Minutes: 369.9
Outgoing Erlangs: 6.2
Outgoing Calls: 78.0
Ave. Min/Call: 4.7


GHTROUT.com | FAQs | Recent Replies

 

[Jeff1215]

We have another T1 route (46 channels) which handle the incoming calls(DID).

 

[Jeff1215]

This is a quite old system installed 10 years ago. Now we realize that we should cut off some trunks.