[darrenmac]

Hi, I am new to Asterisk and VoIp but learning quickly. I have set up a server running Asterisk@home (server is at my home) with X-Lite softphones. System works realy well on an internal network and appears to work with one phone on the internet (I have set up port forwarding on my router) but when I have 2 phones on the internet (my workshop) they come up busy here when I try calling between them. While in this state they will not accept any calls from any extension. The only way I have been able to free up these busy extentions is by rebooting my asterisk@home server. I am asuming that it is something to do with having 2 phones on the same external network.
Does anyone have any suggestions?

[rejil.rajan]

Hi Darren

From the asterisk console try giving sip show peers and you should be able to see the extensions registered as below

112/112 <IP Address> D 5061 Unmonitored
111/111 <IP Address> D 5060 Unmonitored

If the IP address is field shows Unspecified then the phones have not register. Provide the option nat=yes and then try and see if this resolves the issue

[darrenmac]

I have looked at "Asterisk info" via the web page and under sip registery it shows the IP address of all 3 extentions that I have currently registered and unspecified only on the ones that are currently not connected.

Name/username Host Dyn Nat ACL Port Status
208/208 "Ip address" D N 13522 OK (174 ms)
207/207 (Unspecified) D N 0 UNKNOWN
206/206 (Unspecified) D N 0 UNKNOWN
205/205 "Ip address" D N 13463 OK (189 ms)
202/202 (Unspecified) D N 0 UNKNOWN
200/200 "Ip address" D 41536 Unmonitored

205 and 208 show up as the same IP address, this is the external address of the router they are connected to.
and when I look at subscribe/notify I get the following

208 : SIP/208 State:Idle Watchers 0
207 : SIP/207 State:Unavailable Watchers 0
206 : SIP/206 State:Unavailable Watchers 0
205 : SIP/205 State:InUse Watchers 0
202 : SIP/202 State:Unavailable Watchers 0
200 : SIP/200 State:Idle Watchers 0

When I call ext 205 is comes up "busy here" I guess that is because it is showing "InUse". This will stay in this state untill I reboot my Asterisk@home server. I can then call this extension from 200 (internal network of Asterisk@home) but if I call it from 208 ao call 208 from 205 then I get the busy problem again.

The extension are set up as follows

secretdtmfmodecanreinvitecontexthosttypenatportqua lifycallgrouppickupgroupdisallowallowdialaccountco demailbox


Any Ideas?

[darrenmac]

oops, looks like the copy and paste did not work correctly. should be as follows
secret = ******
dtmfmode = rfc2833
canreinvite= no
context = from-internal
host = dynamic
type = friend
nat = yes
port = 5061
qualify = yes
callgroup =
pickupgroup =
disallow =
allow =
dial = SIP/207
accountcode =
mailbox = 207@device

[rejil.rajan]

Hi Darren

Please could you mention the version of Asterisk that you are using. Is it the Asterisk 1.4 version or Asterisk 1.2 version. If you are using the Asterisk 1.4 version, then please ensure that in the sip.conf file the following parameters are correct in them

notifyhold=no
call-limit=10

[darrenmac]

I am running V1.2.7.1

[rejil.rajan]

Can u try to create to IAX extensions in the same manner. Use the IAX client Idefisk

http://www.asteriskguru.com/idefisk/free/

and check if your having the same issue for this also

[darrenmac]

Yes I created IAX extensions and tested in the same situation and it worked ok for testing purposes. I would prefer to use SIP as there seems to be more handsets that support it. Does this test help in locating the source of the problem that I am having with SIP?

[darrenmac]

Sip softphones work over the local network fine. They also work fine accross the internet if there is 1 on the internet ad 1 on the LAN that the asterisk server is on but they have this problem when they are both on the same external network and access the asterisk server accross the internet. IAX extensions work fine between 2 on the external network accross the internet. I still do not understand why this is?