- Full-duplex (SIP) or half-duplex (push to talk)- Autoprovisioning via HTTP, HTTPS, or TFTP- HTTPS or HTTP web based configuration. HTTPS is enabled by default.- 802.11q VLAN tagging- Configurable event generation for device health and status monitoring- Can be set up in Monitor Mode- Simultaneous SIP and multicast- Paging prioritization- Web-based firmware upgradeable- DTMF-controlled relay- Line-out connection- Network and manual speaker volume control- Support for security code to prevent unwanted SIP c