Configuring Bandwidth IP Authentication Trunk
Before proceeding with the next steps, you need to purchase a DID on the Bandwidth platform.
Overview
Bandwidth must be configured as an IP-Based Trunk at the PortSIP PBX System Administrator level. Once the trunk is successfully created, it can be shared with one or more tenants, and DIDs can be assigned through a DID Pool.
Configure a Bandwidth IP Authentication Trunk in PortSIP PBX
Step 1: Create an IP-Based Trunk
Sign in to the PortSIP PBX Web Portal as a System Administrator.
From the left-hand menu, navigate to: Call Manager > Trunks
Click Add to open the trunk type menu.
Select IP Based Trunk.
Step 2: Configure Basic Trunk Settings
Enter the following information:
Name Enter a friendly name for the trunk (for example, Bandwidth Trunk).
Brand Select Bandwidth.
Hostname or IP Address
Contact the Bandwidth Support Team to obtain the IP addresses for your Bandwidth SIP trunk.
Bandwidth typically provides two or more IP addresses.
Enter the primary IP address in the Hostname or IP Address field.
Add the remaining IP addresses under Associated IP Addresses.
Example
Click Next.
Step 3: Configure Trunk Options
Review the trunk options and adjust settings as needed.
Configure the following field if required:
Max Concurrent Calls Defines the maximum number of simultaneous calls PortSIP PBX can establish using this trunk. Set this value based on your capacity planning and service agreement with Bandwidth.
Best Practice Keep all other options at their default values unless Bandwidth has provided specific requirements.
Click Next.
Step 4: Assign Tenants and Configure the DID Pool
Select one or more tenants to grant access to this trunk.
Configure the DID Pool to assign Bandwidth DIDs to tenants.
Important
Each DID can be assigned to only one tenant.
A tenant can use only the DIDs in its assigned DID Pool to:
Create inbound rules
Create outbound rules
Configure outbound caller ID for extensions
DID Pool Format Examples
The DID Pool may include:
A single number
Multiple individual numbers
A range of numbers
A combination of ranges and individual numbers
Click OK to save the configuration.
Expected Result
The Bandwidth IP-Based Trunk is created successfully.
In the trunk list, the status displays as Online. (for IP-Based Trunks, the status always shows Online).
Next Steps
The Bandwidth Register Authentication Trunk is now ready for use.
You can proceed to:
Configure outbound call routing rules
Configure inbound DID routing
Assign outbound caller IDs
Refer to the next guide section: Configuring Outbound & Inbound Calls.
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