22nd June 2006 at 06:00
#45271
Prateek
Guest
Total erlang traffic =
11*7*37/60 = 47.48
So at 2% blocking probablity for 47.48 erlang you need 58 circuits.
1 T1 line consists of 24 circuits, If one circuit is reserved for signalling remaining 23 can be used for voice.
So, Number of T1 requird = 58/23 = 3 (approx)