I’ve been using Satyam Online dialup connection for the past 3 years. The connection is stable and you get faster downloads (average 4kbps download speed which is good for a dial up connection or otherwise a 1mb file is downloaded in 10 to 15 minutes).
I have used BSNL, SANCHARNET, DISHNET, HCL and VSNL. Compared to all these Satyam is best. Satyam has its own bandwidth so the connection is stable and the pages load fast. Their customer service is also good infact it is better than other service providers. Your email queries are answered within 24hrs.
The downside of it is the cost of the dialup service. It is little steep compared to other service providers and they charge Rs.2/- for every login you make that is every time you click the connect button you are charged Rs.2/- if you are connected, and this amount is reduced from your account.( I believe this is still being followed though I am not sure about this now) The satyam people justify this for the premium service they provide. A 50hr 1-month pack would cost you around Rs.315/-, which is Rs.35 to Rs.50/-, more than other service providers for the same pack.
But all being said they are the best in dialup connection as far as I know. Just try it. You won’t regret it.
Cheers!!!! Be Happy!!!!