commad mode and GPRS at the same time - PPP
This is a discussion on commad mode and GPRS at the same time - PPP ; I am using GPRS and PPP and want at the same time as I have a GPRS dataconnection alos query the modem about the Signal strenght "AT++CSQ" Is this possible? I noticed some phones support virtual SerialPorts (Siemens mc35) Is ...
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| dataconnection alos query the modem about the Signal strenght "AT++CSQ" Is this possible? I noticed some phones support virtual SerialPorts (Siemens mc35) Is there any plans on support for that in PPP I am using the latest and greatest ppp software from ...samba.org/ppp... Best Regards Andy |
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| "Song Networks" > I am using GPRS and PPP and want at the same time as I have a GPRS > dataconnection alos query the modem about the Signal strenght "AT++CSQ" > > Is this possible? Currently, in pppd, no. Theoretically, one could modify the kernel bits (you didn't mention it, and pppd runs on a variety of systems, but I'm wildly guessing that you might be using Linux) so that they pause the data stream, drop the modem to command mode (either using the hackish "+++" mechanism or the more reliable AT&D1 DTR mechanism), send the AT command, gather the response, send ATO to go back on-line, and restart the data stream. I don't know of any implementations of such a thing, though, and making it reliable and usable would be quite a challenge. Some commercial modem components have out-of-band monitoring interfaces. When I worked at Xylogics / Bay Networks, we used these in our communications servers to provide on-line call status for administrators. That worked fairly well, but I can't imagine how dodgy the implementation would have been if we had to do it in-band. > I noticed some phones support virtual SerialPorts (Siemens mc35) > Is there any plans on support for that in PPP None that I know of. > I am using the latest and greatest ppp software from ...samba.org/ppp... This isn't really the best place to ask about new features in pppd. ppp-bugs@dp.samba.org and (for the kernel bits) linux-ppp@vger.kernel.org might be better places. -- James Carlson, IP Systems Group Sun Microsystems / 1 Network Drive 71.234W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.497N Fax +1 781 442 1677 |
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