I'm looking for some documentationof the implementation of the SRV DNS
on asterisk. I'm using asterisk 1.4.22.
1) From voip-info.org: "Currently, Asterisk only reads the first SRV
entry without bothering with priorities and weights".
IS It still true? from my first tests I can see that asterisk is able to
manage more than only the first SRV
2) I wanna configure the asterisk in this way: if the proxy with the
highest priority is not reachable, IT tries to dial through the next
proxy defined in the zone with a SRV record.
In my dialplan I have:
exten => _0461.,1,Dial(SIP/[EMAIL PROTECTED])
the asterisk recieve this answer at the DNS query
Domain Name System (response)
[Request In: 1]
[Time: 0.000352000 seconds]
Transaction ID: 0x989a
Flags: 0x8580 (Standard query response, No error)
Questions: 1
Answer RRs: 2
Authority RRs: 1
Additional RRs: 3
Queries
_sip._udp.gorizia.tnet.it: type SRV, class IN
Name: _sip._udp.gorizia.tnet.it
Type: SRV (Service location)
Class: IN (0x0001)
Answers
_sip._udp.gorizia.tnet.it: type SRV, class IN, priority 0,
weight 0, port 5060, target load.gorizia.tnet.it
_sip._udp.gorizia.tnet.it: type SRV, class IN, priority 1,
weight 0, port 5060, target failover.gorizia.tnet.it
Authoritative nameservers
gorizia.tnet.it: type NS, class IN, ns ns1.gorizia.tnet.it
Additional records
load.gorizia.tnet.it: type A, class IN, addr 172.25.18.68
failover.gorizia.tnet.it: type A, class IN, addr 172.25.18.65
ns1.gorizia.tnet.it: type A, class IN, addr 172.25.18.68
From the asterisk console I have:
[2008-10-08 13:34:15] -- Executing [EMAIL PROTECTED]:2]
Dial("SIP/tnn2678-08277a20", "SIP/[EMAIL PROTECTED]") in new stack
[2008-10-08 13:34:15] -- ast_get_srv: SRV lookup for
'_sip._udp.gorizia.tnet.it' mapped to host load.gorizia.tnet.it, port 5060
[2008-10-08 13:34:15] -- Called [EMAIL PROTECTED]
the load.gorizia.tnet.it is not reachable but asterisk is stuck here.
Any one have any clue?
Thanks for your time.
Matteo
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