I've both router 3640 and 5300
I try to use ios 12.0(7)KX ,12.1(2)T 12.2(2)T
and portware 184.108.40.206, 220.127.116.11 and 2.9.10
Problem still had. My customer can't connect many time but some time can connect and modem-callrecord you can see below.
May 8 13:11:59.296: %CALLRECORD-3-MICA_TERSE_CALL_FAILED_REC:DS0 slot/contr/chan=0/0/3, slot/port=1/48, call_id=9D2, calling=77377441, called=0772, time=44, finl-state=Train Up, disc(modem)=7F06 Condition occurred during call setup/Requested by host/network indicated disconnect
And this below I don't know why router can't detect username to connect.Why? after this modem disconnect
.May 8 13:12:23.296: %CALLRECORD-3-MICA_TERSE_CALL_REC: DS0 slot/contr/chan=0/1/9, slot/port=1/23, call_id=9D3, userid=(n/a), ip=0.0.0.0, calling=77230030, called=0772, std=V.90, prot=LAP-M, comp=V.42bis both, init-rx/tx b-rate=24000/32000, finl-rx/tx b-rate=26400/29333, rbs=0, d-pad=None, retr=3, sq=4, snr=26, rx/tx chars=108/489, p/w info=20, rx/tx ec=5/26, bad=477, time=45, finl-state=Steady, disc(radius)=Lost Carrier/Lost Carrier, disc(modem)=DF03 Tx (host to line) data flushing - OK/Requested by host/DTR dropped