I purchase 2 sip configuration files to use on Asterisk/FreePBX but I have problem I can't call each other. It will go directly to mailbox (the person you trying to reach is unavailable, please leave a message prompt). Other than that it works fine. Someone else can call to both numbers. Both number can call elsewhere. I even can call itself and it goes to voicemail menu (You have no messages prompt).
PSTN <-> FPL = OK
Other VOIP provider <-> FPL = OK
FPL(#A) <-> FPL(#B) = Fail FPL server won't pass the call to Asterisk
FPL(#A) -> FPL(#A) = Sort of OK (check voicemail), maybe not because it still in FPL server, not Asterisk viocemail
Trunk Setting:
Peer Detail:
username=1403XXXXXXX
type=peer
sendrpid=yes
secret=xxxxxx
qualify=yes
nat=yes
insecure=very
host=voip.freephoneline.ca
fromdomain=voip.freephoneline.ca
dtmfmode=auto
disallow=all
context=from-trunk
allow=g729&ulaw
User Detail:
type=user
secret=xxxxxxx
fromuser=1403XXXXXXX
fromdomain=voip.freephoneline.ca
dtmfmode=auto
disallow=all
context=from-pstn
canreinvite=no
allow=g729&ulaw
Register:
1403XXXXXXX:xxxxxx@voip.freephoneline.ca/1403XXXXXXX
Anyone have idea

Thank you,
Sukasem