> ## Documentation Index
> Fetch the complete documentation index at: https://docs.callers.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Commpeak Integration

> Guide for integrating Commpeak with Callers via SIP.

## Prerequisites

* A Commpeak account
* Access to Commpeak Portal
* Your Callers account credentials

## Step 1: Configure SIP in Callers

1. Go to the **Integrations** tab in Callers
2. Click `Connect` under SIP Integration
3. Configure your SIP with the following settings:
   * **URL**: Use `sip.commpeak.com`
   * **Port**: 5060 (default)
   * **Username**: Your Commpeak SIP username
   * **Password**: Your Commpeak SIP password
   * Enable **Tech Prefix** if provided by Commpeak
   * Enable **SIP Diversion Header** for authenticated outgoing calls

## Step 2: Set Up SIP Account in Commpeak

1. Log in to Commpeak Portal
2. Navigate to **Setup** > **SIP Accounts**
3. Click **Add New SIP Account**
4. Configure the account:
   * Set a descriptive name
   * Note down the username and password
   * Save your credentials

## Step 3: Purchase and Configure Numbers

1. In Commpeak Portal:
   * Go to **Numbers**
   * Click **Buy Numbers**
   * Search and purchase desired numbers
2. For each number:
   * Click on the number to configure
   * Under **Routing**:
     * Select your SIP account
     * Configure failover if needed

## Step 4: Configure Numbers in Callers

1. Return to Callers' **Integrations** tab
2. Go to the `Phone numbers` section
3. Click `Add SIP Numbers`
4. For each number:
   * Enter the full E.164 format (e.g., +12025550123)
   * Select "Commpeak" as the provider
   * Enable "Use for outbound calls" if needed

## Important Notes

* **Authentication**: Use username/password authentication
* **Tech Prefix**: May be required for certain routes
* **Call Capacity**: Based on your account settings
* **Quality Routing**: Automatic least-cost routing

<Note>
  For optimal performance:

  * Monitor your account status in Commpeak Portal
  * Test both inbound and outbound calling before going live
</Note>