SIP Trunk setup and options

SIP Trunk Setup and Options (IP Whitelisting)

The IP Whitelisting feature lets you send calls directly from your PBX, SBC, or server to PBXme without registering a SIP device — known as the Direct IP method. Recommended for anyone using a static public IP.

  • If only one account uses that IP, only the IP field is needed.
  • If multiple customers share the same IP, a Prefix or X-Header must be added to differentiate traffic.
  • A single account can also whitelist multiple IPs if its traffic may originate from multiple servers.
1

Go to My Account → IP Settings from the top menu.

My Account → IP Settings menu

2

On the IP Whitelist page, click Create to add a new entry.

IP Whitelist page

3

Fill in the form fields:

  • Name — a label for your reference (e.g., “Outgoing PBX”).
  • IP — the public IP of your server (e.g., 5.6.7.8). Use /32 for a single host.
  • Prefix (optional) — a short numeric code to differentiate traffic when multiple users share the same IP.
  • X-Header (optional) — a custom SIP header used for the same purpose (e.g., X-Header: ss44tt55).

IP whitelist entry form

4

Click Save. The IP will appear in the list showing the IP, Prefix, X-Header, and creation date.

Saved IP in whitelist

5
  • You can whitelist several IPs for one account if calls come from different servers.
  • If an IP is already used by another account, you must define a unique Prefix or X-Header.
  • Once saved, calls from the whitelisted IP will be accepted automatically.
  • PBXme uses any Prefix or X-Header to identify which account each call belongs to.

Glossary

Whitelist
A list of IPs authorized to connect directly to PBXme.
Direct IP
A method of sending calls without SIP registration credentials.
Prefix
A short numeric code prepended to dialed numbers to identify the account.
X-Header
A custom SIP header that identifies the traffic source account.
/32
Indicates one single IP address (e.g., 5.6.7.8/32).

If you need help, contact support@pbxme.com or WhatsApp +972 55-966-4944.

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