[Asterisk-Users] asterisk won't release line

[Ken Knight]

Hi all,
 
I have an issue with my system and the phone 
company (Alltel).  If someone goes into any mailbox on the server to leave 
a message, once they hang up on their side the system is not detecting this and 
will sit there and record until you get the standard message from the phone 
company "If you'd like to make a call, please hangup and try again", which is 
preceded by the fast busy tone.
 
Since I never had this problem with any of my 
equipment in another state, I feel it's either the wiring in the building OR it 
is a problem in the phone companies equipment.
Any hints or suggestions would be greatly appreciated.  As a side 
note I've tried this with a simply answering machine and it acts the same 
way.  
 
Thanks,
Ken
 
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[Asterisk-Users] SIP and NAT problems "imagine that :) "

[Ken Knight]

Hi all,
Seriously, I've tried to read everything I could find (& search for) on 
voip-info.org and other sites about this problem, but have been unsuccesful.

Equipment:
xten lite
X100P
Whitebox linux running Asterisk / AMP
D-Link DI-804HV (VPN router)
I have installed another DI-804HV at a second location and created a tunnel. 
For the computers behind that unit, everything works fine throught x-lite. 
However, for any people (ie Family members) that I'm trying to connect to my 
system that aren't going through a tunnel, it isn't working.

Symptoms:
They show up in "Sip Show Peers" however the NAT column is stating "N"
I can call them and they can hear me fine, but I can't here them.
I'm thinking this has to do with RTP, but not sure.
In the router I have the following setup under "Virtual Server":
SIP TCP/UDP 5060
IAX TCP/UDP 4569
KS1 UDP 5004
RTP1 UDP 5000
SIP3 UDP 5036
SIP4 UDP 2727
In the firewall section I've said to allow UDP on -20001 to go to the 
asterisk server
It looks like this in the firewall rules;
Source *,* Dest *,192.168.x.x UDP,-20001

Also on those extensions that are coming from an external source I've added 
the externip attribute in the form of

externip="my_dynamic_domain_name_attached_to_my_ip"
here's one of the extensions:
[254]
username=254
type=friend
secret=***
port=5060
nat=yes
mailbox=254
host=dynamic
dtmfmode=rfc2833
context=from-sip-external
canreinvite=no
callerid="Scott Knight" <254>
externip=my.dyndns.org
Any suggestions would be greatly appreciated
Cheers!
ken 

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