ECH-NPM-KEY

Network Paging Microphone

One-Touch Communication: Supports SIP/P2P calls, multicast paging, and HTTP command triggering with a single button without requiring a server.
Multifunction Keys: Supports up to 40 multifunction keys for quick task initiation in different scenarios.
Large Storage Capacity: Built-in approximately 1GB media storage supporting MP3, WAV, and user pre-recorded audio files.
Expandable Design: Supports expansion with two 4.3-inch color sub-screens and a handset.
Elegant Appearance: Classic silver and black design with high-gloss piano lacquer style finish.
Emergency Broadcasting: Supports one-click emergency broadcasting and up to 20 multicast groups.
Simultaneous Audio Support: Supports simultaneous background music, alarm signals, and voice announcements.
Signal Linkage: Supports short-circuit signal triggering for multicast, SIP calls, P2P calls, and command sets.
Call Functionality: Compatible with SIP servers with numeric keypad support and customizable DTMF commands.
P2P Communication: Supports adding up to 100 P2P accounts for server-free intercom communication.

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