Answers

2016-04-14T13:56:42+05:30
SMS -Short Message service 
MMS-Multimedia Messaging Service
SIM-subscriber Identity Module

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GPRS-General Packet Radio Service
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2016-04-14T14:01:22+05:30
1. SIM   ⇒  Subscriber Identity Module.

2. GPRS ⇒ General Packet Radio Service

3. SMS  ⇒  Short Message Service.

4..MMS ⇒  Multimedia Messaging Service.

 
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