The Perfect Common Space Phone
It’s an exceptional value for an economy price.
The Z 21i is an easy-to-use, cost-effective business IP phone with a graphical backlit display, dedicated line keys, and Power over Ethernet (PoE) support. A dedicated headset port and Electronic Hook Switch (EHS) support offer enhanced usability for wired and wireless headset users. The Z 21i is fully compatible with Zultys’ ZAC Unified Communications application, allowing users to manage calls and messages directly from their computers. Like all Zultys phones, the Z 21i utilizes the Session Initiation Protocol (SIP) open standard. It is managed from the Zultys MX Administrator application for rapid deployment and the industry’s lowest total cost of ownership.
Key Features and Benefits

Remarkable HD Audio

Ease of Use

Wireless Headset Support (EHS)

Simplified Deployment
Feature Highlights
- 2 dedicated line keys
- 2.5” 128×48 pixel backlight display
- Handsfree speakerphone
- Dedicated headset port with EHS support
- Personal directory
- One-touch call transfer and conference
- Display of caller and called line information
- Missed call notification
- VLAN, DSCP, and QOS support
- 802.3af Power over Ethernet
- Wall mountable (optional bracket required)
- 4 context sensitive soft keys
- Full call control via ZAC
- Local 3-way conference
- LDAP contact directories
- Call forward/Call transfer/Call waiting
- Call Park and pick up
- Call Log and Redial
- Paging and Intercom auto-answer capabilities
- SIP open standard
- Hearing Aid Compatible (HAC) handset