A SIP Trunk is a server where by VoIP calls are routed to and from a SIP server. A customer may have their own SIP Server/PBX, and need a 'SIP Trunk' service in order to make and receive calls.

Outbound SIP Trunks

SIP trunks are available from AAISP. In practice all VoIP accounts from AAISP can be used as a SIP Trunk, in that the SIP account can be used to make multiple outbound calls.

There is no limit on the number of outbound calls you can make with an AAISP VoIP account, simply use the username/password and the server in your PBX config.

You don't need to use the number provided for inbound calls, a VoIP account with AAISP is a Telephone Number.

If you'd like SIP trunks from AAISP, then please do contact the Sales department.

Inbound SIP Trunks

Inboound calls can be routed to a registered SIP phone, redirected to another number or routed to your own SIP server. To help where a customer may have a block of numbers the AAISP Control Pages have a concept of grouping numbers together to use a common number as their settings.

Base/Group Numbers

AAISP are able to provide multiple phone numbers, and blocks of numbers, eg blocks of 10, 20, 100, 1000 etc.

On the Control Pages blocks of numbers can be configured in such a way that there is a 'Base' Number, and all other numbers have the Base set in the Group settings. With this setup the individual number mirror the settings on the Master.

This means that settings can be changed on the Base Number which affect all numbers in the Group.

When a number has a Base set, then many of the settings for that number are hidden - as it will inherit it's settings from the Base number.