SIP Trunking

Making voice more flexible, scalable and cost-effective.

SIP Trunking

Now that you’ve decided to move to SIP Trunking, you’ll need the documents to help make it work for your organisation.

We’re here to help things run smoothly. 

Find out more about SIP Trunking

Get more information about SIP Trunking

Our product handbook should answer most technical, product or service related questions about SIP Trunking

Check your SIP Trunking integration has worked

There are 25 tests that check your SIP Trunking integration has been successful. If you’re doing your own acceptance testing, our Managed Acceptance Testing document tells you everything you need to know. 

Get help setting up SIP Trunking

Set up SIP over Public

Deploying your SIP Trunking service over an existing internet connection? Go to our SIP over Public order form 

Set up SIP over JANET

Deploying your SIP Trunking service over JANET? Go to our SIP over JANET form 

Set up SIP over a single Ethernet circuit

Deploying your SIP Trunking service over a single dedicated Ethernet circuit? Go to our SIP Single Ethernet form 

Set up SIP over multiple Ethernet circuits

Deploying your SIP Trunking service over two or more dedicated Ethernet circuits? Go to our Multi Ethernet form 

Set up SIP over Gateway Ethernet

Deploying your SIP Trunking service over O2 Gateway Ethernet circuits? Go to our SIP over Gateway form 

Order new SIP Trunks

Need help filling in order form fields? Find out more about ordering new SIP Trunks 

Manage your existing SIP Trunks

Order a new number

Go to our order form for adding a new number.

Port a number

Go to our order form for porting numbers onto your SIP Trunk from another provider.

Increase or decrease your channels

Go to our order form for increasing to decreasing your SIP Channels.

Change your CLI rules

Go to our order form for enabling CLI Flexibility or change your CLI rules.

Add a network call divert

Go to our order form for adding a network call divert.

Authorise us to port your numbers

Go to our order form for authorising us to port your numbers. 

Change your address

Go to our order form for changing your address details for E999 purposes.

Make other changes

Go to our order form for changing other things, like IP addresses, call barring and fraud management.

Transfer internal numbers

Go to our order form for transferring an internal number.

See our customer CRF guide

We gave you your own personalised guide after we provisioned your circuit. Need more information about filling in the forms? Try the standard guide

Want to leave?

Go to our SIP Cease order form