In one of my previous post I have dealt generic 3G configuration of D’link Modem/Router (2750U) for any SIM. But lot of people are mailing me to write specific SIM configuration. That’s is why this little repetitive post is being written.
I will not deal with all the basic configuration here, for that look at d’link 3G configuration post.
Assuming that you have read the suggested post and ready to tweak it for your SIM. If you will notice that there are just few things which differs from sim to sim. In previous post’s step 7 you need to make sim specific changes.
For MTNL Users:
Account : mtnl
Dial_Number: *99# (MTNL says that you can leave it blank too)
APN: mtnl.net (Both for Delhi/Mumbai)
For BSNL Users:
Dial Number: *99# or *99***1#
NOTE: This BSNL APN is valid for these states: Haryana, Punjab, UP(East), UP(West), Himachal Pradesh, Rajasthan, Jammu & Kashmir, Jharkhand, Bihar, Kolkata, West Bengal, Orissa, Assam, North East, Adman Nicobar, Maharashtra, Gujrat, Madhya Pradesh, Chattishgarh, Karnatka, Andhra Pradesh, Chennai, Tamil Nadu, Kerala.
For Airtel Users:
Operator : airtel
Dial Number: *99***1#
NOTE: If you feel that these settings are not working then make a call to airtel call center and ask them APN for 3G. Rest of the settings will remain same, although you can cross-check them too.
The point here is to note is that almost all major mobile carriers are now using a common APN for all the states. So, if you have free data roaming then you don’t need to change settings from state to state. If network provider is providing 3G in a state then these settings can be considered as default settings.