[gsm]
gsm-bs
tones yes
earlyb no
# These two lines enable RTP bridging
#bridge Ext
#rtp-bridge

[Ext]
#sip <local ip>[:<local port>] <remote ip>[:<remote port>]
sip 127.0.0.1:5050 127.0.0.1:5060
earlyb yes
tones yes
extern
# These two lines enable RTP bridging
#bridge gsm
#rtp-bridge