Which standards-based gateway signaling protocol uses a centralized deployment model and is supported by Cisco?
A. Session Initiation Protocol
B. Media Gateway Control Protocol
C. Skinny Call Control Protocol
D. Trivial File Transfer Protocol
Which standards-based gateway signaling protocol uses a centralized deployment model and is supported by Cisco?
A. Session Initiation Protocol
B. Media Gateway Control Protocol
C. Skinny Call Control Protocol
D. Trivial File Transfer Protocol