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A Vobiz SIP credential is a username/password pair your PBX uses to authenticate against an outbound trunk. Use credentials when you can’t whitelist a fixed IP - common for cloud‑hosted PBXes, dynamic IPs, or distributed setups.
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The Credentials list

Credentials List page with a search field, Add Credential button, a list showing credentials (trunk1, PII Test, vobiz, test, testing12345) each with ID and Status Active, and a Credential Details panel on the right showing Status toggle set to Active, Username (trunk1), Credential ID (UUID), masked Password with show/copy icons, and Metadata with Created and Last Updated timestamps

Credentials List - list, details, and status toggle

Click any card to load its details on the right.

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Details panel

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Create a credential

Click + Add Credential to open the side panel.
Create Credentials List modal with Username required field (placeholder johndoe) and hint Only letters, numbers, underscores and hyphens allowed, Password required field with placeholder Minimum 8 Character with special character and eye reveal icon and constraints note Password length should be between 5 and 20 should contain only alphanumeric and at least one special character from ~!@#$%^&*()_+, an Active toggle on, and Cancel and orange Create Credential buttons

Create Credentials List form

Store the password in your password manager now - Vobiz won’t display the plaintext again. If lost, you’ll have to rotate by setting a new password.
Click Create Credential.

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Use the credential on a trunk

Once created:
  1. Open an Outbound Trunk.
  2. Edit the trunk and pick this credential from the Credentials List dropdown.
  3. Save.
Your PBX should now authenticate against the trunk’s SIP Domain with:

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Tips

  • One credential per environment. Same logic as one trunk per environment - prevents a leaked staging password from being usable in prod.
  • Rotate passwords on offboarding. Setting the credential to Inactive is faster than rotating, but rotation eliminates the risk that someone re‑enables it.
  • Username uniqueness. Vobiz rejects duplicate usernames within your account - pick something descriptive like acme-prod-pbx-01 instead of sip1.

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What’s next

Outbound Trunks

Attach this credential to a trunk.

IP Access Control List

IP whitelisting as an alternative to credentials.