Bandwidth

Global preset for Bandwidth. SBC addresses are not published, so you get the address from Bandwidth; the default authentication is IP authorization.

Values are taken one-to-one from the product’s telephony preset (sip_presets.py). Check any field marked Not verified in the docs in your provider’s panel; it stays editable in the console with the same note.

Provider key

bandwidth_sip

Region

Global (E.164, non-TR numbers allowed)

Connection test

SIP OPTIONS (the provider does not accept REGISTER)

Username

Username (stays empty with IP authorization)

Caller ID (DID)

Your Bandwidth number, E.164 (e.g. +19192971000)

Preset values

These values are pre-filled in the console; you can change every one of them.

Field	Default	Status
SIP server	enter your own — The SBC address Bandwidth gives you	! Not verified in the docs
Transport	UDP	✓ Verified
Authentication	IP authorization	! Not verified in the docs
Dialled number format	e164	✓ Verified
Inbound signalling IPs	— (none published)	! Not verified in the docs
Suggested codecs	PCMU	✓ Verified
SIP REFER (transfer)	unknown — use bridge	! Not verified in the docs

Provider notes

Bandwidth doesn't publish its SBC addresses (a pair) or inbound IPs: get them from your implementation specialist. According to the docs, signalling and media use UDP. The authentication method isn't documented; the default is IP authorization (give Bandwidth the IP of your LiveKit server).

Sources

• www.bandwidth.com/support/en/articles/12822927-outbound-calling-integration-guide

Connecting

1. In Settings → Integrations → Phone line, pick Bandwidth as the provider. The preset fills in the fields.
2. Enter the SIP username, password (write-only) and caller number (DID); change the server, transport or number format if needed.
3. Press Test connection. Then map your inbound numbers to an assistant. Number mapping →