I've found a problem on the GSM modem side. The LCP packets that were sup=
posed=20
to be sent to the peer are not being written.

Delving into the pppd code I found the following

In sys-bsd.c, in function=20

void output(.....)  there's the function call=20

write(ttyfd,p,len)=20

which is returning 0 bytes during LCP negotiation with the peer.

ttyfd is valid and len =3D 24

Can anyone think of a reason why I can't write any bytes to this descript=
or?

Thanks=20
 Brad