Across
- 1. transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or electromagnetic systems
- 4. Cables used for broadband
- 7. GSM is a S_____.
- 9. communication interface technology used between mobile phone and BTS.
Down
- 2. Company that provides telecom services
- 3. A card that is inserted into a mobile phone to make calls
- 5. physical element used to connect network components
- 6. Operator that provides its network infrastructure for rent for another operator.
- 7. telecom text messaging service
- 8. Unique number to identify mobile devices