SIP Calls get Dropped

Asterisk Asterisk Support
1

Hi Everyone,

I’ve finally configured my Asterisk server how I want it, but I am
having a big problem which I can’t find a solution for. I tried posting this to Google Groups, and this is my first time on this forum.

I have one Polycom SoundPoint IP 301 phone and my Asterisk server on my
home network. One of my friends bought a Handytone 286 ATA for his
house. He can successfully register with my Asterisk server (using an
outbound proxy and STUN server). I am able to call him (x1137) just
fine.

The problem is that when he tries to call my Polycom phone (x1000), it
rings, but as soon as I pick it up, the call dropps. He also can’t dial
out to my ZAP trunk, or even to voicemail.

Any ideas what is going on? I know that there is some way to get it
wokring because I can call him, but I’m really stuck on this one.

Any suggestions would be great!

Thanks!

2

This may be an issue with your firewall, or it may be an issue with your sip.conf. It may be something totally unrelated to either, but I would suspect one of those. Can you elaborate?

3

My Asterisk server is on the DMZ on my router/firewall, so there should be no problems there.

Here is my sip.conf:
[general]

port = 5060 ; Port to bind to (SIP is 5060)
bindaddr = 0.0.0.0 ; Address to bind to (all addresses on machine)
allow=all
;disallow=all
;allow=ulaw
;allow=alaw
context = from-internal ;from-sip-external Send unknown SIP callers to this context
callerid = Unknown
dtmfmode=rfc2833

#include sip_nat.conf
#include sip_custom.conf
#include sip_additional.conf

Here’s my sip_additional.conf:
[1000]
username=1000
type=friend
secret=3994
record_out=On-Demand
record_in=On-Demand
qualify=no
port=5060
nat=yes
mailbox=1000@default
host=dynamic
dtmfmode=rfc2833
context=from-internal
canreinvite=no
callerid=“My Name” <1000>
allow=all

[1137]
username=1137
type=friend
secret=1106
record_out=On-Demand
record_in=On-Demand
qualify=yes
port=5060
nat=yes
mailbox=1137@default
host=dynamic
dtmfmode=rfc2833
context=from-internal
canreinvite=no
callerid=“Friend’s Name” <1137>
allow=all

And this is my sip_nat.conf
nat=yes
externip = 67.188.137.145
fromdomain = jamesonray.com
localnet=192.168.1.101/255.255.255.0

Thanks a million!