Odd though that the signal quality doesn't work again until I '--disconnect'. 
Testing from a terminal app it seemed to re-respond to this as soon as the 
timeout/'NO CARRIER' occurs. It may be that MM is sending some other config 
commands that I hadn't done in my simple experiment?

(Another thing I've noticed: the '--disconnect' appears to close the tty before 
re-opening and carrying on. I expected that only a '--disable' would do this. I 
can detect this because my mux driver, when no ports are open anymore, powers 
down the modem. Hence any volatile config MM thinks it has done might actually 
have been lost? Not sure whether this might cause other problems later...)

-----Original Message-----
From: ModemManager-devel 
[mailto:modemmanager-devel-boun...@lists.freedesktop.org] On Behalf Of 
colin.helliw...@ln-systems.com
Sent: 26 January 2017 15:22
To: 'Aleksander Morgado' <aleksan...@aleksander.es>
Cc: 'ModemManager (development)' <modemmanager-devel@lists.freedesktop.org>
Subject: RE: Fetching signal quality during data connection?

Log as follows (--debug --log-level=DEBUG). '--connect' done many minutes after 
the '--enable' and '--create-bearer'


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