How is HSCSD different from GPRS? Explanation: GPRS is a packet based network. HSCSD dedicates circuit switched channels to specific users whereas GPRS supports many more users, but in a bursty manner.

What is Guard Channel disadvantages?

The main disadvantage of Dynamic Guard channel allocation scheme without channel borrowing strategy is new calls starving for channels while the guard channels remain unused. The concept of channel borrowing is incorporated in the proposed scheme which promises improvement in the new call blocking rate.

Which of the following comes under supplementary ISDN services?

Which of the following comes under supplementary ISDN services? Explanation: Supplementary ISDN services are digital in nature. They include call diversion, closed user groups, and caller identification, and are not available in analog mobile networks. Supplementary services also include short messaging service (SMS).