Here is something of interest (and a couple of questions for those knowledgeable in cell phones). http://news.com.com/2100-1001-984424.html?tag=fd_ots Linux to power most Motorola phones - I wonder how long before gnophone will run on these? Do any of you know how much hardware, fcc licencing... is required to serve phones or if a low power cell (low enough where fcc...would not be an issue) could be constructed to serve a workplace or neighborhood. John ----------------------------------------------------- This message was sent using Monroe-Woodbury's WebMail. http://webmail.mw.k12.ny.us/ This e-mail was scanned and found clean by Monroe-Woodbury CSD Antivirus.
> will run on these? Do any of you know how much hardware, fcc licencing... > is required to serve phones or if a low power cell (low enough where > fcc...would not be an issue) could be constructed to serve a workplace or > neighborhood. > > JohnI plan on doing just that with WiFi soon. A company, that I have talked to, is working on a SIP based WiFi phone. So far the plan is to use a Orinoco AP-2000 with 2 gold cards. One will serve the inside, the other will be amplified to max legal power for the band and will serve an outdoor antenna. I don't see why this kind of configuration couldn't be adapted to a workplace environment. Would be a lot cheaper than using proprietary equipment. John, if you would like to converse about the specifics of my plan, feel free to contact me off the list. Raymond McKay Partner Support Services rmckay at supserv.com
On Mon, 2003-02-17 at 17:46, jharragi at mw.k12.ny.us wrote:> > Here is something of interest (and a couple of questions for those > knowledgeable in cell phones). > http://news.com.com/2100-1001-984424.html?tag=fd_ots > Linux to power most Motorola phones - I wonder how long before gnophone > will run on these? Do any of you know how much hardware, fcc licencing... > is required to serve phones or if a low power cell (low enough where > fcc...would not be an issue) could be constructed to serve a workplace or > neighborhood. >Motorola is pushing Java heavily on their phones, so gnophone on the cell phone seems very unlikely. Most likely the foot print would have to be smaller to begin with. But, why would you want to do VoIP over a cellular network, when you already have voice? At least now, voice calls are quite a bit cheaper than data calls on cell networks. "To serve phones" I take to mean to be an RF interface to the phone. You really don't want to go there, since a base station alone costs alot of money (then add all of the switching, data, network elements). What is more promising and more realistic would be to have WiFi networks, with PDAs using VoIP. My $0.02, --brett -- Brett Schwarz brett_schwarz AT yahoo.com
Brett, My post was more to explore people's ideas about if and how this could be meaningful to Asterisk (rather than having an immediate need to deploy such a system).> Motorola is pushing Java heavily on their phones, so gnophone on the > cell phone seems very unlikely. Most likely the foot print would have to > be smaller to begin with.I don't imagine Java code is very lean. And perhaps I shouldn't have said gnophone because of course if you have dedicated buttons to map to functions... you don't need a GUI. Without that you have much more compact code. But gnophone has much of the functionality you would need.> But, why would you want to do VoIP over a cellular network, when you > already have voice?I would expect that digital cellphones could use VoIP or something similar (a voice codec on a network transport protocol). Why would there be much difference between establishing a channel to a SIP client on IP over a hardware network vs. the air? In fact you can make some assumptions in the cellular case that make that technically simpler. For instance the packets will arrive at the phone (if they arrive) in the order they were transmitted.> "To serve phones" I take to mean to be an RF interface to the phone. You > really don't want to go there, since a base station alone costs a lot of > money (then add all of the switching, data, network elements).This is one of the questions I want to understand. John ----------------------------------------------------- This message was sent using Monroe-Woodbury's WebMail. http://webmail.mw.k12.ny.us/ This e-mail was scanned and found clean by Monroe-Woodbury CSD Antivirus.
More interesting is a link in that article about venture capital available for Linux in telecommunications applications. http://news.com.com/2100-1033-983660.html --Karl -- Karl Putland <karl at putland.linux-site.net>
Hello ; Looking at the messages , I saw Diana's wish . If I don't misunderstand ; this app . is called fixed line SMS and is a service of some telcos around the world like Deutsche ,Viking ,Austria and some Far Eastern telcos . Some telcos are testing this system already . This system is 2 phase: Ph 1 - NO FIXED LINE SMS SET The mobile subscriber types the SMS normally and sends it to the fixed line analog subscriber phone number he wants to send . The system does call the fixed line subscriber phone number and reads the message with TTS . If the subscriber wants to reply he can send a voice reply to the mobile phone subscriber. --- My addon : Here a verifying system can be inserted like entering a password for eliminating all the members of the family to hear someone's special message . Ph 2- WITH FIXED LINE SMS SET In this phase there are some sets [from Ascom , Siemens , Viking] which enable the fixed line subscribers to type messages on the LCD screen and send them to fixed line or mobile phone subscriber . And also he/she can read the SMS which comes to this set for the LCD screen . NOW HOW CAN WE DO THIS WITH ASTERISK ? Asterisk has already built in capability to detect FSK . This is used in Caller ID .This SMS system also does use FSK for sending these messages like 2 times DTMF 2 means B or 3 times DTMF 3 means F . I and my friend are interested in doing this with Asterisk and the E1 boards [E100P-E400P] which we have in hand . We have some comments and unanswered questions about doing these . Anybody interested in this ? Maybe we can share the code developing process . Please send an e-mail to me or write here . Regards ; Abdullah KOR Computer Telephony Department Birtel Network Technologies www.birtel.com.tr
> However, one possible alternative would be to use Bluetooth to interface > the cell phone to asterisk directly. An example scenario might be when > you are out and about, the phone would use the cell network. However, > when you are at home, and can detect a Bluetooth server, then use the > home network (i.e. either POTS, or VoIP) via asteriskHere is another related link I came across... http://www.x-changemag.com/hotnews/31h1410037.html ..it would be great if your handset would be a WiFi SIP client on * by default - then function as a cell phone when you're beyond your wireless network range. John ----------------------------------------------------- This message was sent using Monroe-Woodbury's WebMail. http://webmail.mw.k12.ny.us/ This e-mail was scanned and found clean by Monroe-Woodbury CSD Antivirus.