Grandstream analog telephone adapter, 1 analog FXS port, 1 PSTN line FXO port
$95.00
Product Information
- Specifications
- Description
Specifications HT503
| Interfaces | |
| Telephone Interfaces | 1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with lifeline support |
| Network Interfaces | Two (2) 10/100Mbps ports (RJ45) with integrated NAT router and auto-detection and support for either straight through or crossover cables |
| LED Indicators | Power,WAN, LAN, PHONE and LINE |
| Factory Reset Button | Yes |
| Voice, Fax, Modem | |
| Telephony Features | Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference |
| Voice Codecs | G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1A, G.729A/B/E, G.728, G.726-40/32/24/16, iLBC |
| Voice over Packet Capabilities | Voice Activity Detection (VAD) with comfort noise generation (CNG) and packet loss concealment (PLC), dyanmic jitter buffer, G.168 compliant line echo cancellation |
| Fax Over IP | T.38 compliant Group 3 fax relay up to 14.4kbps, Fax datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay |
| Short/Long Haul Ring Load | REN 3: Up to 150 ft on 24 AWG lines |
| Caller ID | Bellcore type 1 & 2, ETSI, BT, NTT and DTMF-based CID |
| Disconnect Methods | Polarity Reversal/Wink |
| Signaling | |
| DHCP Serve/Client NAT Router | Yes, can operate in NAT router or switched mode |
| Network Protocols | TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN |
| QoS | Layer 2 (802.1Q VLAN/802.1p) and Layer 3 (ToS, Diffserv, MPLS) |
| DTMF Method | RFC2833 and/or SIP INFO |
| Provisioning and Control | UPnP, HTTP, HTTPS, TELNET, TFTP, TR069, secure and automated provisioning using AES encryption, syslog |
Grandstream HT503
The HT503 is an analog telephone adapter featuring 1 analog telephone FXS port and 1 PSTN line FXO port. The integration of a FXO and FXS port enables remote call origination and termination to and from the PSTN line, known as "hop-on and hop-off" calling. The 1 FXS port allows for extension of a VoIP service to 1 analog phone. In addition to being SIP compliant, the product features support for up to 2 SIP account profiles, excellent voice quality and advanced telephony features.
Features:
- 1 FXS analog telephone ports (RJ11), 1 PSTN line FXO port, dual 10/100 Mbps ports with integrated NAT router
- Advanced telephony features include caller ID, call waiting
- 3-way voice conference, transfer, forward, do not disturb, message indicator, multi-language voice prompts, T.38 fax, flexible dial plan and more
- Supports up to 2 SIP accounts
- Status LED for power, telephone and network ports, and message waiting indication