11 apr 2006 kl. 16.05 skrev Brent Torrenga:
Out internet connection was out this morning. It seems that the SIP
extensions on our LAN were affected. Behavior like:
Call comes in over POTS to a TDM400P, there is a delay then before
the Cisco
79[46]0's start to ring.
If we were lucky enough to get a call through, then we could not
transfer
the call, or place the call on hold, or park the call.
Outbound calls seemed to have a delay between the time they were
dialed at
the SIP phone and when they were connected.
I know this has been brought up before, in fact there is a bit of a
discussion going on now about DNS SRV (in sip.conf, set
srvlookup=no, or put
all the phone ip's on /etc/hosts). But what is really causing the
issue
here? Yes, it is DNS, or something related to DNS, but why does
that have
anything to do with * trying to make a phone ring on the LAN?
The SRVLOOKUP setting has nothing to do with this, Asterisk will send
DNS
queries anyway. I just answered a similar question in another mail,
so check that.
If DNS does not work on your local network, Asterisk will lock up.
/O
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