VoiceFinder AP-GS501 one(1) channel GSM Gateway provides high-performance Analog or IP to GSM gateway solution for small enterprise such as SOHO. This product uses the state-of-art technology voice compressed algorithm and unique QoS algorithm of AddPac to maintain the maximum voice quality under fast internet line and slow internet line as well. This product is designed based on high performance RISC CPU + DSP structure; supports upgraded speed, the best quality product, offers various user-friendly functions, manufactured at low cost and this product gives high performance for its price.

GSM and VoIP Gateway Service Both Support

AddPac AP-GS501 is a device that can support both GSM gateway service (FXS→GSM or Internet→GSM) and VoIP gateway service (FXS→Internet) simultaneously. It also supports SIP, H.323 Multiple VoIP signaling protocol, various voice codec support(G.711, G.726, G.729, G723.1), one(1) channel GSM interface (antenna, SIM Card), one(1) fast ethernet port, one(1) FXS interface ports, and state-of-art technologies and services.

Powerful networking protocols

VoiceFinder AP-GS501 GSM VoIP Gateway supports one(1) 10/100 Base-T fast ethernet Interface ports and provides stabilized leased line environment, ADSL environment, cable modem environment, fixed IP Address, supports all flow IP environment so that it can be selected in accordance with user environments. It also provides internet application function, and offers both VoIP gateway function and GSM gateway function in one platform. So it supports the GSM Gateway solution for SOHO in economical and effective way under fast internet access environment.

Adapt to the Future Environment : Firmware Upgradeable Technology

Designed on programmable high performance RISC Integrated DSP Technology, AP-GS501 is capable of adopting new capabilities and improvement by downloading firmware from website or with its auto-upgrade option as the customers' needs grow. Moreover, operators can download the latest protocol or service improvements as well as update firmware by checking the version and activating the auto-upgrade via AP-NMS (Network Management System) or AP-VPMS(VoIP Plug &Play Management System) system of AddPac Technologies.

AddPac IP Telephony Total Solution

AddPac technology is not just a vendor of GSM Gateway Box for the customer satisfaction, but it provides various products for appropriate network environment for VoIP, Media Gateway, audio/video terminals, audio/video MCU, IP audio/video broadcast, VoD solutions, network DVR solution, audio/video recording solutions, and traffic controller QoS device solutions. In the future, All IP based multimedia telephony environment, various audio/video resources should be shared on an IP Network; thus, the integration of solutions for each area and entire solutions are considered as top priority. AddPac IP telephony solution is designed to consider the integrated multimedia solution so that it can satisfy the various needs of customer.
AddPac’s various GSM & VoIP Gateway series and multimedia network devices have been fully recognized in terms of its performances and stability throughout the world. AP-GS501, with our accumulated experiences and know-how in the enterprise and service provider markets, will provide full satisfactions for customers who ask for a next-generation GSM-Gateway.

AP-GS501	1-Port FXS Voice Interface
	1-Port GSM Module
	1-Port Antenna Interface for GSM Service
	1-Port SIM Card Interface for GSM Service
	1-Port 10/100Mbps Ethernet Interface
	Power ON/OFF Switch

Network Diagram

Overall Features
	Powerful RISC Microprocessor + DSP Architectures
	One(1) 10/100Mbps Fast Ethernet Interfaces for WAN
	One(1) GSM Module (Antenna, SIM Card) Interface
	One(1) FXS Voice Interfaces
	Standard High-performance VoIP Gateway for Voice Networking Applications
	Multi-protocol Routing Solutions between WAN and LAN Access with H.323 based VoIP Protocol
	ITU-T H.323 v3 VoIP Protocol with ITU-T H.235 Security Feature
	SIP protocol support compliant with IETF RFC3261 (or RFC2543)
	Supports Triple stack of H.323 and SIP
	APOS Internetworking Software to provide Scalability, Functionality, Stability, and QoS Control for AddPac VoIP Gateway
	High-performance IP-Routing Capability with Reliability
	Static, Default IP-Routing and IEEE 802.1Q VLAN Routing Protocols
	Point to Point over Ethernet Protocol for ADSL based Broadband Network
	Enhanced QoS Managements for Voice Traffic
	SNMP MIB v2 for Network Management Features
	Essential Scalability Features uch as DHCP Server & Relay, NAT/PAT, IEEE Transparent Bridging, IP Accounting, and Debugging/ Diagnostics, etc.
	Remote Software Upgrade using FTP & TFTP
	Graceful Compact Design