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How to Setup SIP Trunking With Circuit ID


This article demonstrates step-by-step instructions for Setup SIP Trunking With Circuit ID.

Step-by-Step Instructions

The below table will detail the steps required to accomplish your goals:

Product Features

Local & Toll-Free Origination
Inbound calling to any SIP ready device.
Domestic & International Termination
If it has a working phone number, we can dial it. Outbound calling to any destination.
Skype for Business SIP Trunking
Certified SIP origination and termination for Skype for Business server.
Phone Numbers in Over 60 Different Countries
Have offices around the world? No Problem! Choose from over 60 different countries to purchase local numbers from.
Pool Phone Lines
Have office around the world? No Problem! Choose from over 60 different countries to purchase local numbers from.
Routing Rules
Use Routing Rules to execute complex call routing.
Fax/t38 Support
Use your SIP Trunks to send and recieve Faxes through Circuit ID.
Add on outbound CNAM for just .1 cent per lookup.
Call Recording Available
Add-On Call Recording to record ALL calls to and from your Organization.
GEO Location
Circuit ID can use your location to Automatically your calls to the best location for the best call quality.


Login to the Management Portal by clicking a sign-on provider or entering your Email Address and Password as shown in Exhibit 1. If you don't have an account, you can sign signup instantly by clicking here.
Management Portal Login Form

Configure Your Trunk

Provide the server information for the Info section. Click the save icon on the top right-hand side of the page once you are done as shown in Exhibit 2. For your convenience, a description of each field is given below:


A descriptive name to identify your device.
Select the type of your Device from the drop down box.
Hostname or IP address of your device.
The port will be set to 5060 by default.
License Type
Choose from the following options:

License: An Inbound PSTN Pool license allows you to receive unlimited inbound PSTN calls that can be used across multiple devices. The number of inbound simultaneous calls are based on the quantity you purchase. You can buy Inbound PSTN Pool in our online store. Outbound calls are not included with an Inbound PSTN Pool license and you simply pay-as-you-go for every outbound call.

Pay-As-You-Go: With pay-as-you-go, there are no commitments and you simple pay for every call made or received from your device.

Notes: You will need to add credit to your account to make or receive calls. If you have assigned an Inbound PSTN Pool license to your device, then you do not have to add call credit to receive calls if the telephone number is not a toll free number.
Device information
Server information

Configure Your Server/SBC

Configure your Server/SBC to send traffic to Circuit ID gateways.

Localized Termination URIs

Region Hostname
US East (Virginia) useast.pstn.circuitid.com
US East 2 (Ohio) useast2.pstn.circuitid.com
US West (California) uswest.pstn.circuitid.com
EU (Ireland) euwest.pstn.circuitid.com
Asia Pacific (Singapore) apsoutheast.pstn.circuitid.com

Signalling IPs

US East (Virginia)
US East (Ohio)
US West (California)
EU (Ireland)
Asia Pacific (Singapore)

Media IPs

US East (Virginia)
US East (Virginia)
US East (Virginia)
US East 2 (Ohio)
US West (California)
US West (California)
EU (Ireland)
Asia Pacific (Singapore)

Firewall Configuration

Almost done!

Open the following ports on your firewall to Circuit ID SIP and Media IPs:

Service Port Protocol
SIP Signalling 5060 TCP
Media 10000 thru 20000 TCP/UDP

That’s it, stick a fork in it, you’re done! You can now make and receive calls utilizing today’s most robust PSTN network.


Congratulations! You have now completed the "How-To How to Setup SIP Trunking With Circuit ID" article and we hope that you have accomplished the goals you set out to achieve. However, if for any reason you may still require assistance with setup, simply login to the Management Portal and submit a support request.

Updated on November 20, 2019

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