SIP trunks - Leamout

A SIP trunk is the organization’s connectivity root. It stores direction, inbound settings, authentication policy, permitted source CIDRs, codec preferences, and admission limits.

Create a trunk

curl -sS -X POST "https://api.leamout.com/v1/trunks/" \
  -H "Authorization: Bearer $LEAMOUT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Primary SIP provider",
    "direction": "bidirectional",
    "inbound_enabled": true
  }'

Save the returned trunk ID as TRUNK_ID.

Add a remote endpoint

curl -sS -X POST "https://api.leamout.com/v1/trunks/$TRUNK_ID/endpoints" \
  -H "Authorization: Bearer $LEAMOUT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "host": "sip.your-provider.example",
    "port": 5060,
    "transport": "udp",
    "direction": "outbound",
    "priority": 10,
    "weight": 100
  }'

Endpoints also expose health and cooldown diagnostics. The call-routing layer selects eligible endpoints and can fail over to another configured destination.

Secure and validate

Configure outbound or inbound authentication through the trunk authentication operations.
Allow trusted inbound source networks with POST /v1/trunks/{trunk_id}/source-ips and a cidr field.
Check POST /v1/trunks/{trunk_id}/validate and review valid, errors, and warnings.
Set traffic limits appropriately using max_cps and max_concurrent_calls.

Stored credential secrets are not returned by normal trunk reads. Keep them out of logs and client-facing applications.