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Product Details

Overview

Ejointech is a professional developer and manufacturer of VoIP products. EjoinTech provides ACOM brand VoIP communication devices and solutions. And we also offer customized products and OEM service. They are a cost-effective gateway for SOHO, SMEs and system integrators and it also opens up new revenue generating opportunities for service providers.

Key features

Support 8 channels 8 SIM cards
Support 850/900/1800/1900MHz quad-band GSM network
Support BTS and carrier change and locked
Support IMEI and PIN modify
Support encryption: RC4, VOS and Ejoin private etc, OEM encryption support
SMS receiving/batch sending, AT command compatible
Support USSD balance enquiry
Automatically lock/switch SIM card according to its balance, balance alarm

Basic features

Support SIP registration and peer-to-peer
Support Hotline, Phone book, Speed dial, Dial Plan
Update firmware by local or internet
Field proven compatible with Asterisk-based softswitches
Single-channel debug for manual calling, directly AT command
LCR automatically route calls
Centralized network management
Caller ID detection and generation
Master and slave SIP server
VLan and QoS support
SIM card hot plug
Calling Statistics
Support customized IVR

Applications

Used in conjunction with VOS, VPS, call back or other Asterisk-based softswitches, for

accessing VoIP network by SIM cards, LCR select least cost router to reduce the cost of calls.

Mobility extension

Most of mobile carriers offer zero or almost zero tariff for calls within a group of SIMs.

Mobile phones can be considered as “mobile extensions” of the telephone system.

Additionally, “Least Cost Router” permits to select the cheapest route for any call.

SMS batch sending

The device support SIP SMS sending and receiving, used with the SIP server as a SMS

gateway.

Specification

Network	GSM
Model	ACOM508G-8
Number of Channels	8 channels 8 SIM cards
Frequency	850/900/1800/1900MHz quad-band network
Call Control Protocols	SIP
Voice CODECs	G.729A, G.723.1, G.711 a/ulaw
Network Protocols	IPv4, TCP, UDP, PPPoE, DHCP, DNS, NAT, Telnet, HTTP, FTP, TFTP
Configuration and Management	·Web-based GUI ·Console, telnet command line ·Centralized network management
Firmware Update	Local file, FTP, TFTP and HTTP
Message Features	SMS batch receiving/sending, AT command compatible
Telephony Features	·Hot-line call ·Dial plan ·Speed dial ·Phone book ·CDR ·White list
Telephony Signaling	·DTMF tone dectection/generation ·DTMF relay: in-band, RFC 2833 and SIP info ·Call forward: unconditional, no answer and busy ·N-way conferencing ·Mobile Number Portability
Voice Quality	·Echo cancellation ·Silence suppression(voice activity detection, comfortable noise generation) ·Adaptive jitter buffer
Number of Ports	·1 WAN 10/100Base-T ethernet(RJ-45 connector) ·1 LAN 10/100Base-T ethernet(RJ-45 connector) ·1 console(RS-11 connector)
LEDs	1 power and 4groups of signal strength and running indicator
Power Supply	100-240VAC, 50 - 60 Hz
Dimensions	•Rack mountable 1U chassis(compatible with 19" Rack) •Width: 482mm •Height: 44mm •Depth: 210mm
Weight	2.5kg
Operating Environment	·Operating temperature: 0 - 50ºC ·Operating humidity: 10 – 90%
Warranty	12 Months

Call Statistics

Packing detail

Most Strength Products

Model	504G	508G	508G (Sim Switch Version)	504C	508C	508C (Sim Switch Version)	504W	508W	508C (Sim Switch Version)

Number of Channels	4GSM	8GSM	8GSM	4CDMA	8CDMA	8CDMA	4WCDMA	8WCDMA	8WCDMA

Number of SIM cards	4	8	32	4	8	32	4	8	32

Frequency	850/900/1800/1900MHz			450MHz or 800/1900MHz			850/900/1800/1900/2100MHz

Call Control Protocols	SIP

Voice Codecs	G.729A, G.723.1, G.711 a/ulaw

Application&Solution

Application:

1)IWhen you are using the telephone, and you are want to get preferential from VoIP Phone anytime and anywhere.You just call the SIM card number which in GoIP,the calling number would send to Server by GoIP,then the server receive the calling number and establish the new calling.Then you will receive the new calling,you just accept the calling, Now you are calling with your customer by server.

Solution:

1)Used in conjunction with VOS, VPS, call back or other Asterisk-based softswitches, for accessing VoIP network by SIM cards, LCR select least cost router to reduce the cost of calls.

2)Saving Cost on International and Long Distance Calls,when you are in the other countries& you have this gateway at your Local office,you could dial & receive phone call from your customers as you are there without Long Distance fee Very excellent solution for internal company with branch offices oversea.

Our Certifications

Our team&Factory

FAQ

Q: Are you trading company or manufacturer ?

A: We are developer and manufacturer in Voip products from 2003 year.

Q: What is our main express shipment?
A: DHL,UPS,FEDEX,TNT,EMS(can send to all over the world).

Q: How long is warranty?

A: Usually warranty is 12 months. If you need, we can provide with more long time warranty.

Q: How about your service?

A: Pls don't worry.If you have some problem,our engineer will give u help at the first time.
If you have another question, please feel free to contact us as below: