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| HT-600 |
- Phone Adapter with Single FXS port, supports kinds of voice coding, supports passing through and T.38 fax mode;
- Supports SIP encrypts mode, avoid force-out
- Supports remote upgrade and upgrade configuration function
- Supports configuration files by inside IVR equipment, Web browser, or TFTP and HTTP Central Server
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| HT-610 |
- VOIP phone adapter with single FXS port, router and PSTN Passthrough port
- Powerful remote management by TFTP or HTTP mode
- Supports SIP encrypts mode, avoid force-out
- Supports remote upgrade and upgrade configuration function
- Environmental designing, conform to the international electromagnetism radicalizations standard;
- Artistic Human-based appearance designing. convenient to carry
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| HT-611 |
- VOIP Phone Adapter with single FXS port, FXO port and Router;
- Supports making or receiving calls from PSTN network (by the FXO Port)，it fits intelligently to the different countries’ standards of off hook tone with FXO port.
- The FXO port of V611 busy tone check, can check hang up automatically in three seconds. Without hand setting( withhold hand setting), sending “bye” or “cancel” message automatically when handed up.
- Supports SIP encrypts mode, avoid force-out
- Supports remote upgrade and upgrade configuration function
- Double modes in busy signal testing intelligently
- Auto-calling router (PSTN TO VOIP, VOIP TO PSTN).
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| HT-620 |
- VOIP Phone Adapter with 2 FXS ports
- Builtin Router/NAT, gateway and DMZ port forwarding
- Supports SIP encryption mode, avoid force-out
- Supports upgrade and upgrade configuration function remotely
- Supports the normal standards of encryption and authentication.
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