I’ve used Sipgate for the past few years with my Asterisk box and have been pretty impressed.

For anyone else looking to use Sipgate with Asterisk/FreePBX here is my trunk setup

If you are using NAT between your Asterisk box and Sipgate you will need “canreinvite=no” and “nat=yes” or you will probably get one way audio only on your calls

Edit: context changed to “from-trunk” to make the post clearer

Sysadminman is now offering UK based Asterisk VPS servers that have Asterisk, FreePBX and A2Billing installed and ready to use. These VPSs are hosted in one of the premier datacentres in the UK (BlueSquare) and have low pings to UK and the rest of Europe.

Asterisk and FreePBX combined make an extremely flexible and easy to manage “virtual telephone system” and A2Billing is a billing application enabling you to charge for calls made using your system if required.

Some possible uses of an Asterisk VPS are -

• Small businesses wanting to manage a collection of SIP extensions
• Reselling calling cards or VOIP termination
• People who do a lot of traveling and want to stay in touch wherever they are
• Route calls based on time of day, DDI, CLID, etc…
• Provide contact telephone numbers in cities around the world all routed to your local phones over the internet
• Voicemail to E-mail

See here for more details and have you have any questions please get in touch

Matt