SIP Service Provider - CallCentric

We recommend CallCentric for our customers so long as you do not plan to use call transfer. There service is generally good but due to a bug in their system cannot implement call transfer.

Callcentric allows you to make and receive phone calls over the Internet with no signup or monthly fees. They also offer a paid service which lets you choose from a USA or Canada phone number and offers excellent rates when calling to real telephones.

Sign Up Here:

SIP Configuration Settings:

SIP Number/Username: [Your CallCentric Number]
Password: [Your CallCentric Password]
SIP Proxy Server: