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Asterisk Connecting to the Cellular Network
chan_celliaxCelliax is a GPL channel driver for Asterisk, chan_celliax, development and download site http://www.celliax.org
- runs on Windows and Linux
- manages GSM and CDMA cellular phones through an adapter, composed by a serial datacable (for commands) and an audiocable (for the voice) interfacing the computer soundcard
- Celliax is also capable of making and receiving Skype calls through the cellphone, and has an app like app_directory that let you choose which one of your Skype contacts you want to call.
- on Linux Celliax can also manage ALSA voicemodems (whithout Skype support)
- on Windows and Linux (and *BSD) manages virtually all kind of cellular phones, both old Nokia models (with proprietary Nokia FBUS2 commands) and cellphones supporting AT commands (also with Motorola extensions)
- with Celliax is distributed the Celliax LiveCD, with a working installation of Asterisk, chan_celliax, and configuration utilities, based on Knoppix. The Celliax LiveCD contains also all is needed to run Celliax on Windows: the cygwin installer and the tgz with the asterisk-celliax stuff to be untarred in a basic cygwin installation.
- Headless Celliax, cellphones, Asterisk and Skype (without X)! Booting the LiveCD in console mode you find a script (/usr/local/asterisk/usr/sbin/celliax_server) that automatically launch Xvfb (the fake X11 server), Skype and Celliax. Also via ssh! Isn't that cute?
Example: Siemens mobile phoneGerman forum: Build your own cable for chan_celliax
DetailsSome notes on connecting asterisk to the cellular network. Why?
- Leverage free mobile to mobile calling to lower costs. (nice picture)
- SMS gateway (See note). An easy way to send SMS messages to mobiles from Asterisk is to use the FASTSMS command or the SMSx command.
- Mobile applications; geo-location tracking or theft prevention for example
- Remote monitoring
- Mobile Machine to Mobile Machine so called M2M
The cellular capable device you attach might be.
- A regular cell phone
- Via some home brew adaptor
- USB, Bluetooth, etc
- Analog patch cables to sound card
- Via some commercial cell to traditional phone adaptor
- Note that one of these has a serial line controller option
- Via some home brew adaptor
- A PCMIA cellular card
- More home brew to get the analog connection
- A "Fixed Cellular Terminal" - i.e. a device intended for this.
- A PCI wildcard with GSM modules, with proper software
Interesting notes in the asterisk mailing lists.
- Use an old bag phone?
- Thread on GSM netorks<->cellphone<->bluetooth<->asterisk channel
- Note: Asterisk Bluetooth channels is about using bluetooth to capture presence info for call forwarding not about bridging blue tooth phones to asterisk.
- Bundled Solution from Hypermedia and Xorcom Provides Low-Cost Telephony Solution for Landline-Challenged Areas using Cellular Networks and Asterisk-based IP-PBX
- ICS France offers Top-GSM & TopCDMA series cellular Gateway with 1, 4, 8 Channels. Up to 4 SIM card per channel is important in markets where there are more than one GSM operator providing GSM services.
- http://www.sipcpe.com/fx300GSM.html - SIPCPE offers the FX-300 GSM Call Director a GSM <--> VOIP/PSTN switch and bridge
- CellSocket - Converts cell phone to a regular line phone.
- CellDock - same thing as CellSocket, but supports multiple brands on same base through converter module.
- See eBay
- Ericsson Fixed Wireless Access Terminals
- Falcom range of stuff include Global Position System.
- 2N Telekomunikace Single-line GSM/FXS/FXO and Multi-line GSM/VoIP Gateways. It uses Siemens GSM modules.
- Hypermedia Systems Ltd Asterisk to GSM Gateways
- PhoneLabs - Converts cell phone a regular phone line.
- Supports 400 cell phone models
- Bluetooth capable
- Vox Link or VoxLink Cellular Docking station; similar to CellSocket. You can find these for sale, but the vendor seems to have disappeared. (Went out of business)
- Siemens - see: Asterisk Siemens M20
- Telular - large range of "Fixed Wireless" products.
- Eurotech - Makers of Analog Digital and VOIP to GSM/CDMA gateways. from 1 channel to 32 channels 1-4 sims per channel for advanced LCR. Works seamlessly with Asterisk.
PCI Cards with a GSM interface
- *astTECS 4-port GSM PCI Card - Quadband, GPL drivers, Mobile IP PBX, VoIP GSM Gateways
- Voismart - Voismart vGSM with up to 4 GSM channels PCI card, made for Asterisk and linux in general. See also VoiSmartGSM for instructions and GPL drivers
- Junghanns - uno/duo/quad GSM PCI. Works with Linux
- POLYGATOR - PCI or PCIe GSM/UMTS/3G/WCDMA card, 4-8 channels/SIM-cards (850/900/1800/1900 Mhz and UMTS/WCDMA/3G optionally), optional SIM-Server POLYGATOR support, DTMF receiver, Digital sound processing (with possibility of hardware compression: G.729, G.726, G.723), Light-emitting diode indication of channels active
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