5 Feb
2008
5 Feb
'08
8:04 p.m.
I have never worked on T1 but just E1 in México, but have read several times different books about CAS. AFAIK you are correct, except I cannot confirm your SF vs ESF statement. In the E1 world RBS is not used to implement CAS, but rather channel 16 is used to multiplex the ABCD bits for all the other channels, so ABCD update per channel arrives each 2 ms in channel 16.
Moisés Silva ( moy )
Muchas gracias! I appreciate your input. I know nothing about E1's so it's good to hear from someone who's worked with them. -MC