I assume that you wanna connect using Bluetooth.
Complete Procedure to get connected on-line using Airtel Mobile Office
Pairing Mobile Phone with PC:
1. Switch 'ON' Bluetooth of Mobile and PC
2. Enter Bluetooth set-up Wizard
3. Select second option 'I want to find a spe..', click 'Next'
4. It will show your Mobile name. Select it and click 'Next'
5. Select 'Dial-up Networking' from the list displayed
6. Now it will ask for 'Pairing'. Enter the Passcode. Mobile also asks for Passcode at this same time. Enter the same Passcode in Mobile too.
7. Click 'Finish'
Establishing Airtel Network Connection:
1. Start> Control Panel
2. Click 'Network Connections'
3. Click 'Create a new connection' at Top left
4. Click 'Next' in the wizard 'New Connection'
5. Select 'Connect to the Internet', click 'Next'
6. Choose 'Set up my connection manually' click 'Next'
7. Choose 'Connect using a 'Dial-up modem', click 'Next'
8. Select 'Bluetooth Modem', click 'Next'
9. Type ISP Name as 'Mobile Office', click 'Next'
10. Type *99***# in the Phone number field, click 'Next'
11. Leave User name and Password blank, click 'Next'
12. Click 'Finish'