Hi Axel, On Thu, Apr 06, 2017 at 08:58:10PM +0800, Axel Lin wrote: > > Below is what I do to start PPP: > > Send "AT+CGDCONT=<cid>,<PDP type>,<APN>" > Send "AT+CGAUTH=<cid>[, <auth_prot>[, <userId>, <password>]]" > Send "AT+CFUN=1" > Send "ATD*99***<cid>#" > > ppp_set_usepeerdns(ppp, 1); > ppp_set_auth(ppp, PPPAUTHTYPE_ANY, userId, password); > ppp_connect(ppp, 0); > > My understanding is after ATD*99***1#, I cannot send AT commands. > So it's not clear to me if I need to re-send above AT commands after got > PPPERR_CONNECT. Currently I just call ppp_connect(ppp, 30); to reconnect.
You have to resend AT commands to reconnect. You need to switch back your modem to command mode before, either by using DTR signal or by using a predefined escape sequence that could never happen in the PPP flow (which I do not recommend unless you are very careful with the chosen asyncmap). Sylvain
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