GSM Services

Tele Services:

Telecommunication services that enable voice communication via mobile phones.

Offered services are 'Mobile telephony' & 'Emergency calling'.


Bearer Services:

Include various data services for information transfer between GSM and other networks like PSTN, ISDN etc.

Short Message Service (SMS).
–up to 160 character alphanumeric data transmission to/from the mobile terminal.

Group 3 fax.

Voice mailbox.

Electronic mail.


Supplementary Services:

Call Waiting- Notification of an incoming call while on the handset.

Call Hold- Put a caller on hold to take another call.

Call Barring- All calls, outgoing calls, or incoming calls.

Call Forwarding- Calls can be sent to various numbers defined by the user.

Call Diverting – All Calls can be Divert on a particular number.

Call Conferencing - Link multiple calls together.

CLIP – Caller line identification presentation.

CLIR – Caller line identification restriction.