VoiceFinder AP-GS1500GD gigabit ethernet dual power 4G LTE SMS gateway is a new cutting edge SMS gateway and Analog or IP to 4G gateway supporting maximum 8 ports of 4G LTE Voice interface. 4G LTE and analog interface of AP-GS1500GD provide an optimized call scenario when it interoperates with conventional PBX. Compact cost effective design and system architecture of AP-GS1500GD provides customer satisfaction in high quality, performance and system reliance.

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. AddPac AP-GS1500GD is a device that can support both 4G LTE gateway service (FXS->GSM/3G/4G or Internet -> GSM/3G/4G) 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.729ab, G723.1), Two(2) module slots for 4G LTE and VoIP analog (FXS,FXO,E&M)module, two(2) gigabit ethernet ports, 1-port RS232C console, and state-of-art technologies and services.

4G SMS gateway combining IP-PBX is now suggesting a new model for a main SMS and voice communication solution. In order to be a part of advanced VoIP communications naturally in the future, making an excellent choice of choosing 4G LTE SMS gateway is essential. VoiceFinder AP-GS1500GD is a mid-range 4G LTE SMS gateway providing total 8(octal) 4G interface ports or quad 4G LTE interface ports + 8 FXS interface ports. It is suitable for general enterprises, small and public offices. It has functions as a media gateway which interoperates with IP-PBX and it enables to replace small and mid size analog PBX. Especially AP-GS1500GD provides an optimal solution of VoIP and 4G LTE communications in telephony environments that using telephone lines and PBX to get connect with a head office.

VoiceFinder AP-GS1500GD 4GLTE VoIP Gateway supports two(2) 10/100/1000Mbps Gigabit 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.

Designed on programmable high performance RISC Integrated DSP Technology, AP-GS1500GD 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-SNMS(Smart Network Management System) system of AddPac Technologies.


AddPac’s various Mobile, VoIP Gateway series and multimedia network devices have been fully recognized in terms of its performances and stability throughout the world. AP-GS1500GD, 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 4G LTE SMS Gateway.

- Two(2) Module Slots for 4 Port Mobile Module, 8FXS/8FXO Analog Interface ( Up to 8 Port GSM/3G/4G LTE Modules)
- H.323/SIP Dual Concurrent VoIP Signaling Stack
- High Performance RISC & Programmable DSP Architecture
- G.711/G.726//G.729A/G.723.1, T.38 Fax , VAD, etc
- Powerful Network Protocols (PPPoE, DHCP, Static Routing, etc)
- Two(2)10/100/1000Mbps Gigabit Ethernet
- One(1) RS-232C Port for Command Line Interface
- Firmware Upgradeable Architecture
- SNMS (Smart Network Management System) for Large Scale Deployment
- Advanced Voice QoS Mechanism
- Smart Web Manager
- Rack Mountable Chassis with Internal Power Supply
- Dual Power Supply for Redundancy

· RISC Microprocessor Computing Power
· Two(2) Module Slot for GSM, Analog Interface
· 4-Port GSM Module(AP-N1-GSM4)
    · 4-Port SIM Card Slot
    · One(1) GSM Antenna Interface (Internal 4 Channel Combiner)
    · Hot-Swap
· VoIP Interface Module
    · 8-Port FXS Module (AP-N1-FXS8)
    · 8-Port FXO Module (AP-N1-FXO8)
    · Hot-Swap
· Network Interface
    · Two(2) 10/100/1000Mbps Gigabit Ethernet (RJ45)
· RS232C Console Interface for CLI
· Run LED, LAN LED, Port LEDs
· Internal Dual Power Supply