I've seen this sort of thing where a DNS server is programmed in
resolv.conf but is not accessible over the network. Threads get blocked,
and you have to wait for the DNS query to timeout.
On 16-06-07 10:48 AM, Brent Davidson wrote:
I am having an issue with a couple of phones where they ring, but
there is a long delay after the phone is picked up before the audio
starts.
My setup:
* Server running Asterisk 13.9.1, Dahdi 2.11.1 w/ OSLEC
* Server is CentOS 7
* Quad core CPU with 16GB Ram
* 2 Snom 300 phones.
* NO NAT. Server and phone are on the same subnet with only a
gigabit switch between them.
* Digium TDM400 analog card with 2 incoming analog PSTN lines
When a call comes in, the system answers, IVR plays, caller dials an
extension, Snom 300 rings, handset picked up. Caller continues to
hear ringing for another 7 to 10 seconds. Answerer hears a click, a
quick burst of audio, then silence, then another click and audio is
engaged.
I have tried both SIP and RTP debugging and there are absolutely no
messages indicating any timeout or retransmit. I am at a total loss.
In the past I've always been able to find an answer to issues like
this on my own, but this time I just don't know. I was even beginning
to suspect the network switch might be bad, but pinging between the
server and the phones shows no packet loss and 0.969ms average
response time.
What am I missing*?*
Thanks,
Brent Davidson*
*
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