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Grandstream Analog Adapters
| Features |
HT-286 |
HT-502 |
HT-503 |
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| Ethernet Ports |
1 RJ45 (LAN) |
2 RJ45 (LAN/WAN) |
2 RJ45 (LAN/WAN) |
| NAT / Router |
No |
Yes |
Yes |
| DHCP |
Client |
Client / Server |
Client / Server |
| FXS Port |
1 |
2 |
1 |
| FXO Port |
0 |
0 |
2 |
| PSTN Pass-through Port |
No |
No |
Yes |
| Remote Configuration |
TFTP, HTTP |
TFTP, HTTP |
TFTP, HTTP, HTTPS, Telnet |
| Codec |
G.711, iLBC, G.723, G.729 A/B, G.726-32, T.38(fax) |
Grandstream HandyTone Analog Telephone Adapters/IAD series offers a comprehensive line of affordable VoIP access devices based on Grandstream's innovative and proprietary technology platform. The HandyTone series offers the entry-level IP Telephony user superb audio quality, rich functionalities, interoperability with the leading 3rd party VoIP providers, and compatibility with most service providers. The HandyTone series is compact, works with any PSTN or cordless phone and fax machines and offers the simplicity of plug and dial, making it ideal for the basic IP telephony user.
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