http://www.intervoip.com is the cheapest provider to call India at 1.5 cents/minute and offers very low international rates too. Intervoip is a betamax provider.
Intervoip doesn’t provide free calls to any destination like other betamax, however their rates are very competitive. Read Free calls to India, USA, Russia, Malaysia
Access numbers are only available in about 9 countries which doesn’t include USA and Canada. However Intervoip offers PC to Phone, Phone to Phone. Most importantly they have full support for SIP. You can either use Mobile VOIP, SIP Phone, VOIP ATA or IP phone. For the Phone to Phone option there is a connection fee of 5 cents.
UPDATE : PC-to-Phone rate to India Landline is 2.5 ct/m and Phone-to-Phone is 3 ct/m // PC-to-Phone rate to India Mobile is 2 ct/m and Phone-to-Phone is 2.5 ct/m
Read Smsdiscount.com – Call India at 1.5 ct/min; Cheap than Intervoip.com
Alert!! Read: MyVoIPProvider.com has accused VoIP service provider BetaMax VoIP of credit card fraud. Use a Citi Virtual Credit Card or Paypal Virtual Card.
Download to PC : Go to http://www.intervoip.com/en/download.html and Click �Download InterVoip� to get the installer for PC and enjoy calling.
If your having problem downloading or if InterVoip site is blocked, Download the setup software from below Alternate sources.
FileFactory.com Easy-Share.com Badongo.com
Rapidshare.com Megaupload.com Zshare.net
Here are the Sip settings to configure your sip hardware ( PAP2 or SPA-3000 or 3102) or X-Lite, Express Talk soft phone.
InterVOIP SIP Settings:
SIP port : 5060
Proxy server : sip.intervoip.com
Registrar : sip.intervoip.com
Outbound proxy server : leave empty
Account name : your InterVoip username
Password : your InterVoip password
Display name/number : your InterVoip username or voipnumber
Stunserver (option) : stun.intervoip.com
How to use Intervoip on Mobile Phone
For all Windows Mobile, iPhone, Symbian based Nokia, Sony Ericsson cell phone users, download and install Fring from here.
This is a mobile SIP application which can connect to any SIP server, SKYPE, Google talk, yahoo messenger and msn messenger.
You can configure the above settings here and use it.