​
Overview

IP Whitelisting is a security feature that controls which IP addresses are allowed to access your SIP endpoint.
This feature is available for Enterprise plans only.

​
How It Works

Whitelisting behavior depends on whether IPs are configured:
  • No IPs added → all incoming calls are allowed
  • At least one IP added → only calls from listed IPs are allowed
Once you add an IP address, all non-listed IPs will be blocked.

​
Why It’s Important

Whitelisting helps protect your system from:
  • Unauthorized access
  • SIP scanning and attacks
  • Toll fraud

​
Configure IP Whitelisting

SIP Whitelisting

​
1. Open SIP Settings

  1. Click your Profile icon
  2. Select Platform Settings
  3. Navigate to SIP

​
2. Add IP Address

  • Enter the desired IP address, range, or pattern
  • Click Add
Supported formats:
  • Single IP: 88.214.8.230
  • Wildcard: 88.214.8.*
  • Range: 88.214.8.230-88.214.8.240
  • IPv6: 2001:db8::1

​
3. Apply Configuration

  • Changes take effect immediately after adding IPs

​
Example

No whitelist configured:
→ All incoming calls are accepted

Whitelist configured:
88.214.8.230
→ Only this IP is allowed
→ All others are blocked
Make sure to whitelist all IP addresses used by your SIP provider or PBX.