Newsgroup: it.comp.hardware.modem
Titolo: Mistero con 3Com 56k vfm

E' pazzesco, non riesco a capire perché il mio modem 3Com 56K v90 Voice
FaxModem externo va
così piano.
Faccio dei download da 200-300 bytes al secondo!.
Il mio provider mi assicura che si è aggiornato a V90.
Quando arrivo a 1,5 K al secondo faccio salti di gioia!
Eppure il collegamento si dichiara a 46333 kps
Le ho provate tutte, fin quando ho provato ad installare un Philips 33 Kbps
interno da 60.000 lire e viaggio da dio, i download vanno a circa 3-4 Kbytes
a sec.
Da cosa cavolo dipende?
Il file log a qualcosa di strano?
02-13-1999 23:05:10.10 - U.S. Robotics 56K Voice EXT in use.
02-13-1999 23:05:10.18 - Modem type: U.S. Robotics 56K Voice EXT
02-13-1999 23:05:10.18 - Modem inf path: OEM2.INF
02-13-1999 23:05:10.18 - Modem inf section: Modem2
02-13-1999 23:05:10.40 - 115200,N,8,1
02-13-1999 23:05:10.40 - 115200,N,8,1
02-13-1999 23:05:10.40 - Initializing modem.
02-13-1999 23:05:10.40 - Send: AT<cr>
02-13-1999 23:05:10.53 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:05:10.53 - Interpreted response: Ok
02-13-1999 23:05:10.53 - Send: AT&F&B1&A3E0Q0V1&C1&D2S0=0<cr>
02-13-1999 23:05:10.66 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:05:10.66 - Interpreted response: Ok
02-13-1999 23:05:10.66 - Send: ATS7=60S19=0L0M1&M4&K1&H1&R2&I0B0X3<cr>
02-13-1999 23:05:10.79 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:05:10.79 - Interpreted response: Ok
02-13-1999 23:05:10.81 - Dialing.
02-13-1999 23:05:10.81 - Send: ATDT##########<cr>
02-13-1999 23:05:17.65 - Hanging up the modem.
02-13-1999 23:05:17.65 - Send: <cr>
02-13-1999 23:05:17.67 - Recv: <cr><lf>NO CARRIER<cr><lf>
02-13-1999 23:05:17.67 - Interpreted response: No Carrier
02-13-1999 23:05:17.67 - Send: ATH<cr>
02-13-1999 23:05:17.80 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:05:17.80 - Interpreted response: Ok
02-13-1999 23:05:17.80 - 115200,N,8,1
02-13-1999 23:05:17.81 - Session Statistics:
02-13-1999 23:05:17.81 -                Reads : 38 bytes
02-13-1999 23:05:17.81 -                Writes: 86 bytes
02-13-1999 23:05:17.81 - U.S. Robotics 56K Voice EXT closed.
02-13-1999 23:06:31.05 - U.S. Robotics 56K Voice EXT in use.
02-13-1999 23:06:31.14 - Modem type: U.S. Robotics 56K Voice EXT
02-13-1999 23:06:31.14 - Modem inf path: OEM2.INF
02-13-1999 23:06:31.14 - Modem inf section: Modem2
02-13-1999 23:06:31.47 - 115200,N,8,1
02-13-1999 23:06:31.47 - 115200,N,8,1
02-13-1999 23:06:31.47 - Initializing modem.
02-13-1999 23:06:31.47 - Send: AT<cr>
02-13-1999 23:06:31.47 - Recv: AT<cr>
02-13-1999 23:06:31.60 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:06:31.60 - Interpreted response: Ok
02-13-1999 23:06:31.60 - Send: AT&F&B1&A3E0Q0V1&C1&D2S0=0<cr>
02-13-1999 23:06:31.61 - Recv: AT&F&B1&A3E0Q0V1&C1&D2S0=0<cr>
02-13-1999 23:06:31.73 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:06:31.73 - Interpreted response: Ok
02-13-1999 23:06:31.73 - Send: ATS7=60S19=0L0M1&M4&K1&H1&R2&I0B0X3<cr>
02-13-1999 23:06:31.86 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:06:31.86 - Interpreted response: Ok
02-13-1999 23:06:31.87 - Dialing.
02-13-1999 23:06:31.87 - Send: ATDT##########<cr>
02-13-1999 23:07:01.90 - Recv: <cr><lf>CONNECT
45333/ARQ/V90/LAPM/V42BIS<cr><lf>
02-13-1999 23:07:01.90 - Interpreted response: Connect
02-13-1999 23:07:01.90 - Connection established at 45333bps.
02-13-1999 23:07:01.90 - Error-control on.
02-13-1999 23:07:01.90 - Data compression on.
02-13-1999 23:09:25.64 - Hanging up the modem.
02-13-1999 23:09:25.64 - Hardware hangup by lowering DTR.
02-13-1999 23:09:26.76 - Send: ATH<cr>
02-13-1999 23:09:26.89 - Recv: <cr><lf>OK<cr><lf>
02-13-1999 23:09:26.89 - Interpreted response: Ok
02-13-1999 23:09:26.89 - 115200,N,8,1
02-13-1999 23:09:26.95 - Session Statistics:
02-13-1999 23:09:26.95 -                Reads : 65501 bytes
02-13-1999 23:09:26.95 -                Writes: 3488 bytes
02-13-1999 23:09:26.95 - Serial Overrun Errors: 2
02-13-1999 23:09:26.95 - U.S. Robotics 56K Voice EXT closed.
Ciao.
iSi...@pmail.net
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No, vengono correttamente adottati sia il protocollo per il controllo 
d'errore che per la compressione.
Forse con gli altri comandi per la diagnostica 
(vedi 
http://www.dei.unipd.it/~duffy/
) e` possibile ottenere
informazioni
utili a chiarire la situazione.
Ciao,
Lorenzo Colň.