Base numbers
Path: /admin-settings → Base Numbers tab
Base numbers are the phone numbers registered on the platform — the foundation for every PSTN endpoint. They are managed centrally by superadmins and assigned to teams.
Fields
| Field | Required | Description |
|---|---|---|
| Name | Yes | Friendly name (≤ 20 chars). |
| Number | Yes | The phone number. Unique platform-wide. |
| Description | No | Optional. |
| Server Group | No | Which server group handles calls. |
| Extensions | No | Whether teams can create extension-based endpoints. |
| Header Manipulation Configs | No | Multi-select; default + team configs. |
| Outbound Trunk (Egress) | No | One or more egress trunks. Highest priority wins. |
| Provider | No | Telephony provider (Twilio, Vonage, …) — informational. |
| Status | No | Provisioning state (active, suspended, …). |
| Country | No | Country code or name. |
| External ID | No | Provider-specific ID (e.g. Twilio SID). |
| Suspended At | No | When the number was suspended. |
Load-balancing display
If a server group is assigned, the inherited values are surfaced:
- LB Method —
round_robin/least_connections/weighted_round_robin. - Max Concurrent Calls — per-server limit.
- Priority — server group priority (1 – 10).
Extensions
When Extensions is enabled on a base number:
- Teams can create endpoints with a 3-digit code (e.g.
001,042). - The full number becomes
base + extension. - Extensions are unique per base number.
When disabled, the base number can host one endpoint.
Team assignment
Assign in the Teams tab or directly from the base-number edit dialog. A base number can belong to multiple teams.
Workflows
Create a base number
- Click Create.
- Enter Name + Number.
- Optionally pick a Server Group.
- Enable Extensions if multiple endpoints should share this number.
- Optionally assign Header Manipulation configs and Egress trunks.
- Save.
- Assign to teams in Teams tab.
Enable extensions on an existing number
Edit → toggle Extensions on → save. Teams can now create extension endpoints.