On 16.02.21 at 20:33 Luca Bertoncello wrote:
Am 16.02.2021 um 19:56 schrieb Michael Maier:
Hi Michael,
Do I use pjsip?
pjsip show registrations
gw*CLI> pjsip show registrations
No objects found.
So I don't use pjsip... :(
Yes.
Maybe could you send me an abstract of your configuration?
Take a look here [1]
You mean, I have to create a "fake" Zone tel.t-online.de in my Bind with
these settings? Looks like dangerous, if they changes something...
If you do that statically -> yes, you're right. You have to do it
dynamically. I attached a script, which can be used to dynamically build
a rpz each 15 minutes e.g. It directly asks the telekom nameserver for
naptr and srv entries. It looks like this:
server 192.168.62.13
zone rpz-tonline
update delete tel.t-online.de.rpz-tonline.
update delete _sips._tcp.tel.t-online.de.rpz-tonline.
update delete _sip._tcp.tel.t-online.de.rpz-tonline.
update add tel.t-online.de.rpz-tonline. 60 NAPTR 10 0 "s"
"SIPS+D2T" "" _sips._tcp.tel.t-online.de.
update add tel.t-online.de.rpz-tonline. 60 NAPTR 30 0 "s"
"SIP+D2T" "" _sip._tcp.tel.t-online.de.
update add _sips._tcp.tel.t-online.de.rpz-tonline. 60 SRV 10 0
5061 s-eps-110.edns.t-ipnet.de.
update add _sip._tcp.tel.t-online.de.rpz-tonline. 60 SRV 10 0
5060 s-epp-110.edns.t-ipnet.de.
send
So if I undestand what you mean, you check the NAPTR and SRV für
_sips._tcp.tel.t-online.de and save the record in a "virtual domain"
rpz-tonline, is it correct?
Then I suppose you use this domain instead of tel.t-online.de in the SIP
configuratione as "host", "outboundproxy" and "fromdomain", is it correct?
No - you have to use the correct domain name in asterisk. Only bind knows about
the fake domain. You have to configure bind correctly.
You have to create the fake domain in the bind config like this:
options {
...
response-policy {
zone "rpz-tonline";
};
};
...
zone "rpz-tonline" {
type master;
file "/var/named/rpz-tonline-override";
allow-query { any; };
allow-transfer { any; };
allow-update { any; };
};
All other things: take a look at the script! It's not that complicated.
The script unregisters and registers the telekom trunks, if a change is
detected. This is done as long as there is no call active. This works
for me - but may not wort for others - feel free to change the code.
OK, I'll check it...
Independently you have to add your own trunk names to get it working
(telekomPJSIP-a, ...).
Could you explain me that? I'm not an expert of Asterisk... :(
Well, if you want to use it, you really should engage yourself a bit more to get
it solved. It's not that easy. Or you may forget about the DNS fake and live with
the problem, that asterisk could partly switch sometimes to another server -
breaking the telephony. I don't think it would happen that often, because Telekom
usually is extremely stable. Try at first to get a running pjsip configuration.
The DNS theme could be done later on.
Regards
Michael
[1]
https://www.ip-phone-forum.de/threads/hilfe-f%C3%BCr-grundeinstellung-asterisk-telekom-ben%C3%B6tigt.307115/post-2374234
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