GSM stands for Global System for Mobile Communications. It is the dominant mobile phone comminucation protocol in Europe and also popular elsewere. The name is also used to describe some of the voice codecs used in the GSM standards.

This page regards connecting a VoIP PBX to a GSM network, and connecting legacy PBX to either VoIP or GSM, or both. For more information about the codec, see the GSM codec/s.

GSM to H323 / SIP adapters

Hypermedia Systems

Connecting VoIP PBX to GSM

VoIP GSM Gateways

The VoIP GSM Gateway- HG-1600 series comes with 8 GSM VoIP ports for connecting IP-based systems with GSM networks. The VoIP GSM Gateway is designed to provide a cost-effective alternative for fixed-to-mobile or mobile-to-fixed telephone calls for small and medium businesses.



VoIP GSM Gateway HG-1600 main features:

• 4 - 8 GSM / VoIP ports
• Up to 32 SIM cards
• Advanced LCR and routing groups
• IP address and DDI pattern restrictions
• Remote pre-paid SIM recharge
• Integrated antenna splitter
• GSM worldwide use
• WEB management and control

Additional VoIP Gateways for connecting IP-based systems with Cellular networks.

Connecting Legacy PBX to VoIP and GSM

GSM Gateways

The ISDN GSM GatewayHG-2000 series of PRI Cellular Gateway products are equipped with PRI interface and start with 12 Cellular channels.



The E1/T1 PRI GSM Gateway supports up 32 cellular ports, and provides superior voice technology for connecting PBX systems and IP-based systems with the cellular networks. The HG-3000 Series of PRI Cellular Gateways enable inbound and outbound calls over GSM, CDMA and PSTN networks, with optional support of VoIP calls.

Further range of GSM Gateways for routing incoming and outgoing calls via the mobile telephone network.

Connecting PBX to VoIP, Cellular and Fixed networks

Mobility Extension (mobex)

The Mobility Extension Gateway is a stand-alone PBX add-on system that provides companies with a business-class enterprise mobility solution, enabling employees to work from everywhere and anywhere, yet enables enterprises to retain control over phone numbers and other calling policies.

This latest Mobility Extension feature provides easy integration of IP technology with the legacy telephony environment, and connects mobile phones and other external telephony devices to the PBX as "virtual" PBX extensions, and enables remote access to the enterprise's PBX/IP PBX regardless of employee's whereabouts or telephony device (Cellular phone, WiFi phone, Multi-radio Smartphone, laptop, or any VoIP device).

Other related products:

• 3G VoIP Gateway
• 3G UMTS Analog Gateway
• GSM Analog Gateway
• PRI 3G UMTS Gateway

FOR MORE INFORMATION:

http://www.hyperms.com
mailto:Info@hyperms.com

PORTech VoIP GSM Gateway,Follow Me GSM Gateway/GSM Fixed Wireless Terminal,E1 GSM Channel Bank,Skype GSM Gateway

PORTech is a manufacturer in taiwan. PORTech major in 1,4,8 ports GSM Fixed Wireless Terminals(follow me),1,2 ports VoIP GSM Gateway,E1 GSM Channel Bank,Skype GSM gateway and Remote power manage by PSTN and WEB
http://www.portech.com.tw

MV-370 : 1 channel VoIP GSM Gateway

MV-372 : 2 channels VoIP GSM Gateway

for call termination (VoIP to GSM ) and origination (GSM to VoIP). It is SIP based and compatible with Asterisk. It can enable to make 2 calls simultaneously from IP phones to GSM networks and GSM network to IP phone.
We support one stage dialing and two stage dialing.
One stage dialing:You can dial any mobile number from your lan phone directly.MV-370/MV-372 will connect the call.
Two stage dialing:when you call in MV-370,you will hear dial tone and you can dial any ip,asterisk extension or phone number.
GSM Frequency :Dual band:900/1800MHZ,Tri band:900/1800/1900MHZ,Tri band:850/1800/1900MHZ,

MT-350~1 ports GSM Fixed Wireless Terminals,Follow Me GSM Gateway

MT-350S:1 port SMS GSM Gateway
MT-354~4 ports GSM Fixed Wireless Terminals,Follow Me GSM Gateway
MT-358~8 ports GSM Fixed Wireless Terminals,Follow Me GSM Gateway
MT-358_Follow Me GSM Gateway
Cost saving effect- Make call from fixed lines (PBX or PSTN) to GSM networks
and From GSM network to fixed lines), and enables up to 1/4/8 simultaneous calls to/from GSM networks.
1.FXS,FXO,GSM interface.
2.Dial plan (GSM Prefix No.Setting (50 sets))
3.Auto-select economic route ( LCR )
4.Only 1 (MT-350,MT-354) or 2(MT-358) antennas
5.Polarity reversing function
6.Follow me-Call-transfer feature (GSM TO PSTN,PSTN TO GSM)
-PSTN to GSM:
 An incoming call of PSTN will be transferred to specify GSM no.
- GSM to PSTN:
 1. GSM in PSTN out, give you a prompt "du" and you can enter any
     destination number 　
 2.An incoming call of GSM will be transferred to specify PSTN no.
GSM Frequency :Dual band:900/1800MHZ,Tri band:850/1800/1900MHZ,

Digital Mobile Trunk (DMT) ~E1 GSM Channel Bank
DMT accepts incoming call from E1/T1 PRI of PSTN or
PBX and choose one GSM channel to dial out according to the prefix of the
destination mobile number. In this way, we can have least cost routing.
DMT can provide Call Detail Record (CDR) for traffic and accounting management.
ISDN PRI interface: 1 port
GSM interface: 31 ports
Optional external SCE-900: Expands SIM card upto 32 pieces per GSM channel.
Optional external SCBox: Expands SIM card upto 4 pieces per GSM channel.
Applicable for telecom service providers
VoIP application: Gateway's E1/T1 port connects DMT's E1/T1 port
Calling time: user can assign the calling time for each sheet of the SIM
card.When the time runs out, system will block this GSM port, or switch
to next unused SIM card (in the case that SCE is installed).
Besides PRI to GSM,you may also apply GSM to PRI (two ways).
Additionally,we also develop DMT-2 that is E1*1 in,GSM*31 and E1*1 out.
GSM Frequency :Dual band:900/1800MHZ,Tri band:900/1800/1900MHZ,Tri band:850/1800/1900MHZ

DMT-E1 GSM Channel Bank

Antenna collecting Box: Base equipment.

 
If you want to connect extra Outdoor directional antenna or Yigi antenna.....,you can purchase option Antenna Combiner(AC-32)

 
If your control room is usually no body there,you can consider our Smart Power Monitor(4 ports)- Remote power on/ off /reboot by PSTN and WEB..



SkyTrunk: Skype to PBX free, PBX to Skype free

SkyTrunk ST-1004~4 ports skype,FXO,FXS,GSM
GSM Frequency :Dual band:900/1800MHZ,Tri band:900/1800/1900MHZ


SkyTrunk ST-2004 ~4 ports Skype,FXS


SkyTrunk ST-3004~4 ports skype,FXO,FXS


SkyServer:~4 ports Skype,FXS (Build in pc)


If you have interest,please contact us

Rebecca Liu
PORTech Communications Inc.
150 Shiang Shung N.Rd,Taichung,Taiwan
http://www.portech.com.tw
E-mail:info@portech.com.tw
http://www.portech.com.tw/eweb/PORTECH_dm.pdf ---- PORTech Products list

VoiceBlue - VoIP GSM Gateway - 2N TELEKOMUNIKACE

VoiceBlue claims to be: the first professionally built VoIP GSM Gateway. It is an ideal complementary product to any SIP-based IP PBX. It allows the user to get from the IP to a GSM network and vice versa very cheaply. The Ethernet (RJ 45) connection is a significant advantage in most cases.

Features:

• Two or four GSM channel gateway
• Standard SIP client
• Smart Voice Routing - Least Cost Routing (LCR)
• Intelligent incoming call routing
• Callback
• LCR according to free minutes
• Top voice quality (EFR super sound)
• Worldwide use (GSM 900/1800 MHz)
• DISA with voice navigation, user defined voice message for incoming calls
• AT command based administration
• CDR buffer for up to 500,000 records, Compact flash
• LOG and statistics saving
• Integrated antenna splitter

PCI adapters

ASTERISK PCI GSM CARD - Junghanns.NET uno/duo/quadGSM

This PCI card is available with either 1,2 or 4 GSM modules (Motorola). It fits into a standard PCI slot and offers up to 4 SMA connectors for antennas.
Multiple Junghanns.NET GSM PCI series cards can be interconnected over an external PCM bus. The card's active channel switching capability (to bridge voice channels on the card without latency and not using the host CPU) is also working over the external PCM bus (e.g. voice channels on different cards can be actively switched). The Junghanns.NET GSM PCI series cards can be connected to any other Junghanns.NET card to build a real TDM switched PBX.

Features

• 1, 2 or 4 GSM quadband channels
• 1 SIM card per GSM channel
• optional SIM expansion boards available (2 SIM per channel, swapable during operation)
• DIGITAL audio quality (noise suppression, echocancel)
• digital call setup (fast)
• DTMF detection
• GSM data connections
• GPRS data connections
• SMS RX/TX
• PCM bus connectors
• daisy chaining of max. 8 cards
• 4 dual-color LEDs (network state indicators)
• active channel switching (across multiple cards over the external PCM bus)
• suitable for 3.3 volts and 5.0 volts 32 bit PCI slots
• 4 mini antennas are included with the card

Expansion modules are available that allow to use 8 SIM cards for 4 GSM modules, so one can change the SIM card with the software. There is also a slot HOT plug SIM card holder available which makes changing the SIM cards possible without having to shut down the PBX.


Drivers are included in Bristuff as of version 0.2.0-RC8r / 0.3.0-PRE-1o . They require the bristuffed Zaptel and Asterisk and a separate libgsmat (something similar to libpri for GSM signalling).

For more information, see http://www.junghanns.net/en/GSM-PCI_produkt.html

ASTERISK PCI GSM CARD - Voismart vGSM

Is the first 100% Asterisk compatible PCI bus card, for multiple channel (up to four) GSM communication management. This board allows systems integrators to transform highly priced fixed to mobile voice traffic into a much cheaper mobile to mobile call management, with considerable savings. 100% compatible with EU and US GSM networks (900/1800/1900 MHz) and with Brazil and Japan networks. SMS are handled in native modality, thanks to a new Asterisk application for messages TX and RX, available free together with this board.

Features

• Bus Type: PCI 2.2 compliant
• IRQ Request levels: Allocated by PCI BIOS
• IO base addr (hex): Allocated by PCI BIOS
• Dimensions in mm: 154mm x 107mm (PCB), 164mm x 129mm including SIM holder, bracket, connectors
• Plug & Play: yes
• External Interface: 4 x SMA/F 50 Ohm antenna connectors
• Antennas: included
• Radio Interface: tri band GSM (900/1800/1900), phase 2/2+ compliant, class: Small MS, TX Power: Class 4 (2W) at EGSM 900 Class 1 (1W) at GSM 1800 and GSM 1900
• SMS: MT, MO, CB, Text and PDU mode
• SIM Interface: Supported SIM card: 3V
• Hardware EchoCancel
• GSM data connections
• GPRS data connections
• Performance: 4 channels GSM (900/1800/1900) voice interface

You can find latest news and docs on VoiSmart Open Source website. See http://open.voismart.it/index.php/VGSM
VoiSmart Quad GSM board is supplied with GPL open source drivers, it is compatible with all Linux / Asterisk systems, managing kernel versions from 2.6.9 onwards.
No asterisk or zaptel patching required. No IRQ sharing issues.

The antenna is external, and included in the package.

For more information, see http://www.voismart.com

VIERLING ECOTEL VoIP

ECOTEL VoIP provides reliable connections between IP, S0 and GSM. The number of GSM channels is scalable in steps of two up to a total of eight. Multiple ECOTEL VoIP are cascadeable. The GSM modules are compatible with all types of GSM networks (GSM 850/900/1800/1900/R). Potential applications range from connection to an existing PBX system or integration into an existing VoIP infrastructure all the way through to distributed installations with multiple gateways and common configuration software. Integrated with a central SIM card server ECOTEL VoIP offers carrier-class standard. For application examples please see:

English: http://www.vierling.de/www_vierling/ecotel_voip-en_779_370_6_f.htm?query=
German: http://www.vierling.de/www_vierling/ecotel_voip-dt_402_369_6_f.htm?query=

VIERLING ECOTEL VoIP allows intelligent SIM management: The gateway can switch from one SIM to another so the user is able to use up to eight SIM cards per channel (64 SIM cards within each ECOTEL VoIP). Additionally, it is possible to integrate ECOTEL VoIP with the ECOTEL VTM SCS (SIM Card Server) using thousands of SIM cards.

Further Information:
ECOTEL VoIP (English): http://www.vierling.de/www_vierling/gsm_gateways_overview-en_135_130_6_f.htm
ECOTEL VoIP (German): http://www.vierling.de/www_vierling/gsm_gateways_overview-dt_38_38_6_f.htm?query=
Alternative product (English): http://www.vierling.de/www_vierling/mobile_communication-en_134_133_6_f.htm?query=
Alternative product (German): http://www.vierling.de/www_vierling/mobile_communication-dt_37_37_6_f.htm

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GP-710 Bluetooth Mobile SIP VoIP Gateway for global systems

GP-710 is a revolution and innovation product.
It Integrated VoIP and 2.4G Bluetooth technical in a device,
this not only offered high cost-effectiveness in mobile communication for mobile user,
but also offered very flexibility in re-building system.

Feature:

1. Use Bluetooth Technology, GSM.WCDMA VoIP don't care Bands & Systems.
2. VoIP and Bluetooth Mobile fully integration.
3. Compatible with SIP RFC543, RFC3261.
4. Support UPLINK , DOWNLINK Routining.
5. Support Voice report and Setting IP function
6. Offered Web Site for inquire or setting.
7. Support SIP PROXY, or point to point application.
8. Offered one stage ,two stage free dialing and call transfer function.
9. Bluetooth with auto pairing and auto searching function.
10.QoS and Digital Transmit.

Application Diagram:

Specification:

VoIP
Web Browser
IVR Interface
Uplink Route Setting
Downlink Setting
1 Stage, Dialout Called, Free Dial

Network Protocol:

SIP v1 (RFC2543), v2(RFC3261)
IP/TCP/UDP/RTP/RTCP
IP/ICMP/ARP/RARP/SNTP
DHCP Client/ PPPoE Client
DNS Client

NAT Traversal:

STUN

Voice Quality:

VAD: Voice activity detection
CNG: Comfortable noise generator
LEC: Line echo canceller
Packet Loss Compensation
Adaptive Jitter Buffer

Bluetooth:

Bluetooth Specification V2.
Carrier Frequency 2400MHz to 2483.5MHz( USA , Spain ,France)
Modulation Method GFSK,1Mbps,0.5BT Gaussian
Output level, class 2
10 meters working range

Gempro Technology Inc.
E-mail: service@gempro.com.tw
webs: http://www.gempro.com.tw

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Gempro GP-510 Fixed Wireless (PBX) Bluetooth Mobile Terminal for GSM/CDMA/WCDMA & SKYPE

GP-510 uses Bluetooth to connect Bluetooth mobile phone with common telephone or PBX.It makes immediately PBX has a trunk by mobile phone to transmit.It is not only far away the electromagnetic wave, but also unnecessary to change user’s habit of using the table phone. It is a trunk of mobile to mobile, and it also saves expenses.

Feature

1.PBX/phone Bluetooth Mobile Voice is transmitted on the trunk by mobile phone.
2.GP-510 pairs to Bluetooth mobile phone to use directly, it doesn’t relate to telecommunication provider and frequency.
3.Just use phone to dial, it can be far away the electromagnetic wave.
4.Speed Dial Function.
5.The calling will pass to PSTN automatically when power down, mobile phone is unpaired or out of range.
6.Volume of digitization and it adjusts volume and gains.
7.Set local code and automatically add code, and user isn’t necessary to change habit of using the table phone.
8.Bluetooth has functions of pairing and searching automatically.
9.Transmit high quality voice.
10.It is compatible with GSM/CDMA/3G/3.5G/WCDMA Bluetooth mobile phone.
11.Phone/PBX dial out and answer Skype. (already pair to Bluetooth Dongle)as convenient as using common telephone.
12.Use Bluetooth technology, so the connection doesn’t have any wires.
13.Phone(PBX) can dial out and answer Skype. (already pair to Bluetooth Dongle)
14.100 sets phone book Speed Dial & memorize
15.Don't change the dialing habit to skype out

Specification

Metering Signals: 12KHz, 16KHz,Polarity Reversal
A/D ,D/A : G.711:A-law or u-law PCM Mode
DTMF : Detect & Generator
Caller ID Format: DTMF
Tone Programmable: DIAL Tone & Busy Tone
Power : AC110/220V 50/60HZ

Bluetooth

Bluetooth Specification V2.
Carrier Frequency 2400MHz to 2483.5MHz( USA , Spain ,France)
Modulation Method GFSK,1Mbps,0.5BT Gaussian
Output level, class 2
10 meters working range





Gempro Technology Inc.
E-mail:service@gempro.com.tw
webs: http://www.gempro.com.tw

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