ISDN provide fully integrated digital services to the users which include
(A) .Bearer Services:
(B). Teleservices
(C). Alternative Services
(D). Supplementary Services
1
A, B and C
2
B, C and D
3
A, C and D
4
A, B and D
5
Question Not Attempted
ISDN provide fully integrated digital services to the users which include
(A) .Bearer Services:
(B). Teleservices
(C). Alternative Services
(D). Supplementary Services