Connection times out using hso driver

Binary package hint: network-manager

I have a USB dongle that works using the hso driver.

If you try to make an internet connection just after plugging it in, it can take longer than network-manager's timeout. Because of this, n-m will think the connection has failed, while the modem thinks it's connected (this usually happens a few seconds after the default timeout, judging by the "connection" LED on the modem).

If you wait a while before choosing the UMTS connection from the nm-applet menu, it works fine.

I think increasing the timeout of the "AT_OWANCALL=%d,1,1" command from 10s to 15s or maybe even 20s would resolve the problem (though the race condition will still exist).