- VoIP Telephones
- ISDN Interfaces
- Headsets
- Conference Solutions
- VoIP PBX
- Gateways
- Analog Adaptor ATA
- Switches
- Navayo
- TRex
- IP Door Entry Systems
- Fax-Server
- WLAN + DECT over SIP
- IP Cameras
- Network Accessories
- Special Offers
- With PJP-50USB firmware Version 2.000 it is now possible to chain up to four PJP-50USBs for...
- Continue
- An upgrade to the popular Skype-certified GXV3140, the GXV3175 features a 7” touch screen...
- Continue
- New Fully-Featured 2-line GXP1450 Enterprise SIP Phone Delivers Innovative Desktop...
- Continue
- VoIP Media Gateway voip-mg The Junghanns.NET Voice over IP Media Gateway (voip-mg) turns all...
- Continue
- 42com's Open Source channel driver exclusively allows the combination of the flexible Asterisk-...
- Continue
GRANDSTREAM HandyTone HT503
Art.No.: VOGRSTHT503
- Description
- Accessoires
The source code of components licensed under GPL used in Grandstream VoIP phones can be downloaded from here. The original GPL license text can be downloaded from here.
The HandyTone 503 is the next generation of powerful, affordable, high quality and manageable IP telephony ATA/IAD for residential users and road-warriors. Its compact size, excellent voice quality, packed feature functionality and best-in-class price-performance point enable consumers to maximize the power of IP voice and data connectivity. The HandyTone 503 is based on SIP standard and interoperable with most 3rd party SIP compliant devices and software. It features 1 FXS telephone port, 1 FXO PSTN line port, dual 10M/100Mbps network ports, port status and message waiting LED, and a base stand for vertical positioning.
Features
- 1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with power-outage life line support
- Up to 2 SIP account profiles, SIP over TCP/TLS, SRTP
- Dual 10/100 Mbps network ports (RJ45) with integrated high performance NAT router
- Status LED for power, telephone, PSTN line, network, and message waiting indication
- Advanced telephony features
- caller ID from both IP and PSTN
- call waiting, 3-way conference with IP and/or PSTN
- remote call origination and termination from/to PSTN
- hop-on and hop-off calling
- transfer to OR forward to IP or PSTN
- do not disturb
- message waiting indication
- multi-language voice prompts
- flexible dial plan, direct IP calling
- Comprehensive voice codecs
- Secure and automated provisioning using HTTP/HTTPS/Telnet/TFTP
- Symmetric and asymmetric voice codec/RTP in any call sessions
- T.38 Fax
- SIP over TCP/TLS
Benefits
- IP connectivity for any phone and fax
- Hop-on/Hop-off calling
- Web management for easy configuration and installation
- Offers traditional and advanced telephony features
- Portable and compact for use at home or on the road
