Grandstream HT503
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. This functionality coupled with its compact size makes it an ideal solution for road warriors seeking the savings and benefits of voice-over-ip communication.
- Based on SIP standard and interoperable with most 3rd party SIP compliant devices and software
- Dual 10M/100Mbps network ports, port status and message waiting LED, and a base stand for vertical positioning
- Traditional and advanced telephony features including mutli language voice prompts and transfer to or forward to IP or PSTN
| Ethernet Ports | 2 RJ45 (LAN/WAN) |
| NAT/Router | Yes |
| DHCP | Client/Server |
| FXS Port | 1 |
| FXO Port | 1 |
| PSTN Pass-through Port | Yes |
| Voicemail Indicator | Yes |
| Voice Codec | G.711(a/u-law), G.723.1, G.729A/B/E, G.726-40/32/24/16 and iLBC, T.38 fax |
| Remote Configuration | HTTP/HTTPS/Telnet/TFTP Provisioning |



