I’ve been using CallCentric as one of my SIP trunk and DID providers for several months now and it has worked really well. If you use FreePBX (or one of the prebuilt distributions that use it such as Trixbox, Elastix or PBX-in-a-flash) and use this link to sign up for a free CallCentric account I will configure your trunk in FreePBX for free.
Please use the contact form here if you would like to take up this offer.
Some of the services offered by CallCentric are –
- US DID numbers from only $2.95/month
- DID numbers in cities all over the world
- US calls at only $0.0198 per minute
- UK landline calls only $0.0198 per minute
- Unlimited calling or pay-as-you-go plans