10 Nov
2005
10 Nov
'05
3:34 a.m.
Sorry Klaus, I pressed reply instead of reply to all so the mailist was not
CCed, :-)
I used the example configs v5 from Onsip.org and it didnt include an ACK
handler.
I added the extra code and no more warnings now.
Also another thing i had to do when i was setting up the example config file
for NAT and Media proxy was to add a check for NATed caller before the part
of the below code in Invite handler:
if (!proxy_authorize("","subscriber")) {
proxy_challenge("","1");
break;
} else if (!check_from()) {
log (1,"route[3]: 403 error \n");
sl_send_reply("403", "Use From=ID");
break;
};
Without the check and the fixed contact , no UA behind NAT could make a call
except from the UA that took port 5060 on NAT.
I also found that in my config file when a caller was behind nat and was
trying to make a pstn call , i called use_media_proxy twice.
When i fixed that , the calls would go through ok and not get a 503
response.
Can someone explain what exactly happened when i called the use_media_proxy
twice and the calls were getting rejected?
Many thanks,
Kyriakos
----- Original Message -----
From: "Klaus Darilion" <klaus.mailinglists(a)pernau.at>
To: "Kyriakos" <tank30(a)hotmail.com>om>; "ser users"
<serusers(a)lists.iptel.org>
Sent: Wednesday, November 09, 2005 4:48 PM
Subject: Re: [Serusers] Calls from UAs behind NAT getting a 503 error...
Kyriakos wrote:
So Klaus, basically what i need is an extra
handler for ACK?
route[6] {
# ------------------------------------------------------------------------
# ACK Handler
# ------------------------------------------------------------------------
if (method=="ACK") {
t_relay();
return;
};
That should work
Does this affect the call flow? I mean Ive read
that responses to ACK
requests are not that important.
per standard: there is NEVER a response to an ACK
Im a newbie in SER and sip so please bare with
me.
:-)
please always cc: to the list.
regards
klaus
By the way thanks for the reply.
Kyriakos