VoIP calling rates to India in USD contact: swapan@yahoo.com   

PROVIDER All India
(+91)
Notes
1touchtone 0.230.200.13 0.120.100.220.240.190.210.23 
AT&T CallVantage0.17 0.15 0.150.160.170.180.160.16  
Axvoice0.190.1090.107 0.0820.0690.1610.1550.1280.125  
broadVoice0.150.150.13 0.090.080.230.160.170.160.21They have Asterisk settings in BYOD section.
Babble0.8p0.8p0.8p 0.8p0.8p0.8p0.8p0.8p0.8p  
CALLCentric0.11880.11880.1188 0.11880.11880.11880.12100.11880.11880.1188Here is a link to their generic settings
Callgate0.200.200.20 0.200.200.200.200.200.200.20They mention that they support IAX2 protocol but no settings provided.
DrayTEL0.11p 0.11p 0.11p0.11p0.11p0.11p0.11p0.11p  
EarthLink trueVoice0.190.160.17 0.170.170.180.200.160.170.19 
Evoice Telecom0.150.120.11 0.090.090.150.160.120.120.16 
Globe70.1380.1380.125 0.1260.1260.1260.125/0.1280.1280.126  
gossiptel0.0811p0.1139p0.1139p 0.1139p0.1139p0.1139p0.1392p0.1139p0.1139p0.1139p 
Hear Link0.130.130.13 0.130.130.130.130.130.130.13 
IconnectHere0.1550.1550.155 0.1550.1550.1550.1550.1550.1550.155 
iDial Direct0.180.150.10 0.090.070.16 0.150.160.18 
ITP0.170.140.13 0.110.100.170.170.140.140.17 
Lingo0.160.150.12 0.130.110.160.180.130.130.16 
mutualphone.com0.1150.1150.115 0.1150.1150.1150.1150.1150.1150.115Does not support G.711, needs G.723 or G.729/G.729a.
Problems with calling to India.
MYWEBCALLS.COM0.1550.1220.141 0.1550.155 0.170 0.151  
Net2Phone0.35 0.25 0.250.250.25 0.250.25  
NET Telephone0.155 0.155 0.1550.1550.1550.1550.1550.155  
Packet80.180.160.16 0.160.160.170.170.160.150.17 
RhinoBell0.08   0.040.04 0.080.080.08 Need to pay through Moneybookers.
X-Lite config here
sipgate0.136p0.136p0.136p 0.136p0.136p0.136p0.105p0.136p0.136p  
Skype0.1540.1540.17 0.1540.154 0.17 0.154  
Sonic DigitalVoice0.170.170.18 0.180.180.170.180.170.170.18 
StanaPhone0.2030.180.18 0.180.180.1820.18/0.190.180.180.163 
SunRocket0.15 0.12 0.120.12 0.150.120.12  
telepacket0.140.1180.124 0.1080.1070.1290.1380.1400.1250.136Asterisk settings using SIP provided here.
TerraCall0.0990.0990.099 0.0990.0990.0990.0990.0990.0990.099Asterisk config file settings are here.
Note that xchange.terracall.com gives problems behind NAT.
Vbuzzer0.130.130.13 0.130.130.130.130.130.130.13Seems like RTP port settings cause trouble with asterisk.See the post here.
Verizon0.330.330.33 0.330.330.330.330.330.330.33 
viatalk0.16550.16050.1548 0.16550.15350.160.16/0.16550.160.16040.1639 
VoiceEclipse0.229   0.12  0.1780.1680.158  
VoipBuster0.12p0.12p0.12p 0.12p0.12p0.12p0.12p0.12p0.12p0.12pSwiss telco Finarea SA provides the application ViopBuster with these rates excluding VAT.
Voipfone0.083p0.083p0.083p 0.083p0.083p0.083p0.087p0.083p0.083p083p 
VoIPtalk/Telappliant0.11p 0.11p 0.11p0.11p0.11p0.11p0.11p0.11p  
VOIP.NET0.15 0.09    0.140.110.11  
Vonage0.170.170.18 0.180.180.170.180.170.170.18 
Vonics0.160.150.15 0.150.140.140.160.160.160.16 
ZingoTel0.170.150.14 0.140.130.170.180.130.150.17 
  

  Here are some flat rate providers

ipCloudsThey provide calls to India for a flat rate of £149/year excluding VAT limited to 100 min/month.