I’ve tried to explicitly set my two PSTN trunks/FXO lines to alaw with:
alaw = 1-2
in /etc/dahdi/system.conf. However, when I do this, all I get is loud
intense noise on the line and nothing else – can’t dial, can’t make
calls, can’t receive calls. If I omit it altogether, everything works fine.
As I’m in the UK – I thought Europe uses alaw on phone lines – how come
Asterisk seems to be using only ulaw – and alaw won’t even work? Config
examples on the Internet seem to suggest that it should work.
Thanks for any help,