Date: Sat, 22 Jan 2000 17:48:57 -0800 From: "Majid Almassari" <majid@ibroadcast.net> To: <dayton@overx.com> Cc: "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.org> Subject: RE: Making a 56K Modem Pool Message-ID: <015d01bf6544$086547e0$1791ddd1@balfourplace.com>
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This is a multi-part message in MIME format. ------=_NextPart_000_0158_01BF6500.F4EC5E80 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0159_01BF6500.F4F3FFA0" ------=_NextPart_001_0159_01BF6500.F4F3FFA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Soren Dayton <dayton@overx.com> wrote in message news:86u2k5io06.fsf@polo.overx.com... > The following message is a courtesy copy of an article > that has been posted to uchi.comp.unix as well. > > > Hi, > > I'm trying to set up a little modem pool with which I would like to > get 56k speeds. I have a couple of USR/3com Courier V.Everything > modems that are capable of 56k connectivity. Provided you have a clean Analog phone line, local circuit loop from your location to the Public Telephone Network Switch (PTNS) > > However, when asked how to reverse the builtin asymmetry in the modem > (outgoing 33k, incoming 56k) the 3com tech support guy said that I had > to go to ISDN modems with funny digital lines and the whole deal. He is right. This is just Analog phone line limitations. in matter of fact you can not achieve anything higher that 53KBPS (incoming) due to FCC regulations on Analog phone lines. > Does someone know what's going on here (or know of a pointer to that > kind of information)? I just don't understand what the issues are, > and I'm going to need to understand these to buy new modems, phone > lines, etc. Unfortunately there is nothing that you can do about it except calling the phone company and complain about noise so they can dispatch a technician to check the wiring in your location at least. Remote testing based on Signal to Noise ratios are not that accurate anyway. There might be wiring problems in your location that a phone tech can determine (like a cross-over wiring-Phone guys know this better that I do?). If everything is OK then you are basically limited and need to switch to a different Technology such as ISDN, XDSL, Cable,...etc. >If I need to get new modems, does anyone have > recommendations about ISDN modems? Any gotchas doing this stuff with > FreeBSD? I think 3COM (US Robotics) do produce good ISDN Modems check their web site for more details. Have I installed such a modem in FreeBSD? not really so I can not tell you any experience in that field, but it is a PPP connection in principle and what you need is a proper configuration in ppp.conf reflecting PPP support over ISDN. Also in FreeBSD 3.4, there are additional Kernel support for various ISDN cards. I would strongly recommend reading the Release notes of your FreeBSD Distribution and above all the valuable Online Handbook. Hopefully that helps. > > Thanks, > Soren > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > -- Majid Almassari, MSEE, MCP. System Administrator. iBroadcast, Inc. (206) 223-5540 http://www.ibroadcast.net ------=_NextPart_001_0159_01BF6500.F4F3FFA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.2722.1300" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>Soren Dayton <<A=20 href=3D"mailto:dayton@overx.com">dayton@overx.com</A>> wrote in = message<BR><A=20 href=3D"news:86u2k5io06.fsf@polo.overx.com">news:86u2k5io06.fsf@polo.over= x.com</A>...<BR>>=20 The following message is a courtesy copy of an article<BR>> that has = been=20 posted to uchi.comp.unix as well.<BR>><BR>><BR>> = Hi,<BR>><BR>>=20 I'm trying to set up a little modem pool with which I would like = to<BR>> get=20 56k speeds. I have a couple of USR/3com Courier = V.Everything<BR>>=20 modems that are capable of 56k connectivity.<BR><BR>Provided you have a = clean=20 Analog phone line, local circuit loop from your<BR>location to the = Public=20 Telephone Network Switch (PTNS)<BR>><BR>> However, when asked how = to=20 reverse the builtin asymmetry in the modem<BR>> (outgoing 33k, = incoming 56k)=20 the 3com tech support guy said that I had<BR>> to go to ISDN modems = with=20 funny digital lines and the whole deal.<BR><BR>He is right. This is just = Analog=20 phone line limitations. in matter of fact<BR>you can not achieve = anything higher=20 that 53KBPS (incoming) due to FCC<BR>regulations on Analog phone=20 lines.<BR><BR>> Does someone know what's going on here (or know of a = pointer=20 to that<BR>> kind of information)? I just don't understand what = the=20 issues are,<BR>> and I'm going to need to understand these to buy new = modems,=20 phone<BR>> lines, etc.<BR><BR>Unfortunately there is nothing that you = can do=20 about it except calling the<BR>phone company and complain about noise so = they=20 can dispatch a technician to<BR>check the wiring in your location at = least.=20 Remote testing based on Signal<BR>to Noise ratios are not that accurate = anyway.=20 There might be wiring problems<BR>in your location that a phone tech can = determine (like a cross-over<BR>wiring-Phone guys know this better that = I do?).=20 If everything is OK then you<BR>are basically limited and need to switch = to a=20 different Technology such as<BR>ISDN, XDSL, Cable,...etc.<BR><BR>>If = I need=20 to get new modems, does anyone have<BR>> recommendations about ISDN=20 modems? Any gotchas doing this stuff with<BR>> FreeBSD?<BR>I = think 3COM=20 (US Robotics) do produce good ISDN Modems check their web site<BR>for = more=20 details. Have I installed such a modem in FreeBSD? not really so = I<BR>can not=20 tell you any experience in that field, but it is a PPP connection=20 in<BR>principle and what you need is a proper configuration in ppp.conf=20 reflecting<BR>PPP support over ISDN. Also in FreeBSD 3.4, there are = additional=20 Kernel<BR>support for various ISDN cards. I would strongly recommend = reading=20 the<BR>Release notes of your FreeBSD Distribution and above all the = valuable=20 Online<BR>Handbook. Hopefully that helps.<BR>><BR>> = Thanks,<BR>>=20 Soren<BR>><BR>><BR>> To Unsubscribe: send mail to <A=20 href=3D"mailto:majordomo@FreeBSD.org">majordomo@FreeBSD.org</A><BR>> = with=20 "unsubscribe freebsd-questions" in the body of the=20 message<BR>><BR><BR><BR>--<BR>Majid Almassari, MSEE, MCP.<BR>System=20 Administrator.<BR>iBroadcast, Inc.<BR>(206) 223-5540<BR><A=20 href=3D"http://www.ibroadcast.net">http://www.ibroadcast.net</A><BR><BR><= /FONT></DIV></BODY></HTML> ------=_NextPart_001_0159_01BF6500.F4F3FFA0-- ------=_NextPart_000_0158_01BF6500.F4EC5E80 Content-Type: text/x-vcard; name="Majid Almassari.vcf" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="Majid Almassari.vcf" BEGIN:VCARD VERSION:2.1 N:Almassari;Majid FN:Majid Almassari ORG:iBroadcast, Inc;NOC TITLE:System Administrator TEL;WORK;VOICE:206-223-5540 TEL;CELL;VOICE:206-650-6001 TEL;PAGER;VOICE:2066506001@messaging.sprintpcs.com TEL;WORK;FAX:206-223-5535 TEL;HOME;FAX:206-223-5535 ADR;WORK;ENCODING=3DQUOTED-PRINTABLE:;;207 1/2-1st Avenue = S.=3D0D=3D0A#300;Seattle;WA;98104;USA LABEL;WORK;ENCODING=3DQUOTED-PRINTABLE:207 1/2-1st Avenue = S.=3D0D=3D0A#300=3D0D=3D0ASeattle, WA 98104=3D0D=3D0AUSA ADR;HOME;ENCODING=3DQUOTED-PRINTABLE:;;1820 Minor = Avenue.=3D0D=3D0A#416;Seattle;WA;98101;USA LABEL;HOME;ENCODING=3DQUOTED-PRINTABLE:1820 Minor = Avenue.=3D0D=3D0A#416=3D0D=3D0ASeattle, WA 98101=3D0D=3D0AUSA X-WAB-GENDER:2 URL: URL:http://www.ibroadcast.net BDAY:19700611 KEY;X509;ENCODING=3DBASE64: = MIIEIjCCA4ugAwIBAgIQUNdkOrECniRXSQehPos/jzANBgkqhkiG9w0BAQQFADCBzDEXMBUG = A1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsTFlZlcmlTaWduIFRydXN0IE5ldHdvcmsx = RjBEBgNVBAsTPXd3dy52ZXJpc2lnbi5jb20vcmVwb3NpdG9yeS9SUEEgSW5jb3JwLiBCeSBS = ZWYuLExJQUIuTFREKGMpOTgxSDBGBgNVBAMTP1ZlcmlTaWduIENsYXNzIDEgQ0EgSW5kaXZp = ZHVhbCBTdWJzY3JpYmVyLVBlcnNvbmEgTm90IFZhbGlkYXRlZDAeFw05OTExMTEwMDAwMDBa = Fw0wMDAxMTAyMzU5NTlaMIIBCjEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsT = FlZlcmlTaWduIFRydXN0IE5ldHdvcmsxRjBEBgNVBAsTPXd3dy52ZXJpc2lnbi5jb20vcmVw = b3NpdG9yeS9SUEEgSW5jb3JwLiBieSBSZWYuLExJQUIuTFREKGMpOTgxHjAcBgNVBAsTFVBl = cnNvbmEgTm90IFZhbGlkYXRlZDEnMCUGA1UECxMeRGlnaXRhbCBJRCBDbGFzcyAxIC0gTWlj = cm9zb2Z0MRgwFgYDVQQDFA9NYWppZCBBbG1hc3NhcmkxIzAhBgkqhkiG9w0BCQEWFG1hamlk = QGlicm9hZGNhc3QubmV0MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBANpgi91K/KpvdLNmM0at = RMKYpH64YGtyfgMJ8H6MR9eGT3Pgs9MiUy3XnQmzFRuziC53WlxYk+S/65pcRUR7BnkCAwEA = AaOCAQYwggECMAkGA1UdEwQCMAAwgawGA1UdIASBpDCBoTCBngYLYIZIAYb4RQEHAQEwgY4w = KAYIKwYBBQUHAgEWHGh0dHBzOi8vd3d3LnZlcmlzaWduLmNvbS9DUFMwYgYIKwYBBQUHAgIw = VjAVFg5WZXJpU2lnbiwgSW5jLjADAgEBGj1WZXJpU2lnbidzIENQUyBpbmNvcnAuIGJ5IHJl = ZmVyZW5jZSBsaWFiLiBsdGQuIChjKTk3IFZlcmlTaWduMBEGCWCGSAGG+EIBAQQEAwIHgDAz = BgNVHR8ELDAqMCigJqAkhiJodHRwOi8vY3JsLnZlcmlzaWduLmNvbS9jbGFzczEuY3JsMA0G = CSqGSIb3DQEBBAUAA4GBAB7zFUond1mrVnBLPft5oBcbAHELlIR4QO81CnOsDeirT1VX4i29 = a1AdAhl3ED//GVMCTUkxWKIagG4I5z/FN305Ce5Ml7oBRAAq5HexA8NhwLekr5flm1vJAgeD 4p5vdCvKMg25N0GnOT9Jug3e0ODoucLD29i6hHBXgQu/lmUl EMAIL;PREF;INTERNET:majid@ibroadcast.net EMAIL;INTERNET:malmassa@whidbey.net REV:20000123T014857Z END:VCARD ------=_NextPart_000_0158_01BF6500.F4EC5E80-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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