Across
- 3. it combines the features of telephone and mobile phone
- 5. a huge board placed on the roadside for advertisement
- 6. a bird used for sending messages
- 8. an old means of communication
- 9. mass media for people who cannot read or write
Down
- 1. it can be carried anywhere we go to talk to people
- 2. means of mass media that can be viewed live
- 4. a service discontinued by postal department
- 7. invented by Graham Bell