Zammad offers phone functionality for users with access to a CTI (computer telephony integration) system (available since version 2.6).
What do I need to get started?
Zammad requires the following information to set up a CTI integration:
- individual call events (e.g., call incoming/answered/ended)
- caller ID data
To use the CTI interface, your CTI system must transmit this information (and only this information) to Zammad via HTTP.

What can it do for me?
Inbound calls
- Caller ID display: View a caller’s customer profile with just one click
- Intelligent caller ID search: Automatically scans tickets for caller ID data (e.g. in email signatures) if customer account data is missing
- Caller overview: See a caller’s entire ticket history, or instantly create a new ticket
- Call log: See all calls at a glance, along with their status (e.g. which ones require a callback?)
- Agent overview: See who’s currently on a call
- Selective call blocking
- Do-not-disturb mode

Outbound calls
- Direct dialing: Initiate calls from within Zammad
- Dynamic caller ID: Set your caller ID based on e.g. the destination country of the call
Find more information in our Admin-Documentation.