IP Payphone
- Call control protocol: SIP(RFC-3261) or H.323 V4 or MGCP.
- Echo cancellation: G.165/G.167 16ms.
- IP Address: PPPoE, DHCP client, Static IP.
- LCD Display: Dialed Number, Coin Value, Remaining Credit, Reminding Message, Self-Diagnostic Message, and Revenue Information.
- Function Keys: Voice Amplification, Language Choice, Redial, Follow-on-Call.
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Optional Web-based management system for tariff / rate download
