Which of the following are the ISDN Interfaces:
(A). Voice mail
(B). Narrowband
(C). BroadBand
(D). Primary Rate Interface
1
A,. B and C
2
B, C and D
3
A, C and D
4
A, B and D
Which of the following are the ISDN Interfaces:
(A). Voice mail
(B). Narrowband
(C). BroadBand
(D). Primary Rate Interface