# Voice

Set up incoming and outgoing calls, manage caller information, and configure
emergency calling with DIDWW.

## Set up and manage calls

Receive calls, place outbound calls, or configure emergency calling.

**Inbound trunks**

Deliver incoming calls to a SIP endpoint, telephone number, or the
phone.systems(TM) cloud PBX.

[Inbound trunks](inbound-trunks/index.html)

**Outbound trunks**

Configure outbound SIP trunks to place calls to local and international
destinations.

[Outbound trunks](outbound-trunks/index.html)

**Emergency calling**

Check availability and configure emergency calling services in
supported countries.

[Emergency Calling](emergency-calling/index.html)

## Caller information

Understand how calling numbers and caller names are handled.

**CNAM IN for SIP trunks**

Understand caller name lookup and delivery on incoming SIP calls.

[CNAM IN for SIP trunks](inbound-trunks/sip-trunks/call-information/cnam-in.html)

**Caller ID and CNAM OUT**

Review outbound Caller ID settings and caller name delivery.

[Caller ID and CNAM OUT](outbound-trunks/caller-id-cnam-out.html)

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