14 Mar
2017
14 Mar
'17
2:43 a.m.
> WHy not installing rtpproxy and proxying all
Because I would like to record some calls and I dont know RTPProxy's
features, maybe it could record ?
2017-03-14 5:14 GMT+01:00 anfecora <anfecora(a)gmail.com>om>:
WHy not installing rtpproxy and proxying all rtp to
the inside uase
kamailio to load balance them, it will be transparent on the inside perhaps
a cleaner solution?
On Mon, Mar 13, 2017 at 3:21 PM, Kjeld Flarup <kfc(a)viptel.dk> wrote:
As I recall it is sequential, but not from the
start everytime, it is
incrementing all the time.
If You are running three servers, then with a 100% identical load, one
would expect an average of 2 failing attempts per call.
The reality I see is however often very different RTP ports, most likely
because load isn't 100% identical.
Med venlig hilsen / Best regards
Kjeld Flarup (Christensen) M.Sc E.E, Teknisk chef
Viptel ApS, Hammershusvej 16C, DK-7400 Herning
Telefon: +45 46949949, Telefax: +45 46949950, http://viptel.dk
On 03/13/2017 11:05 PM, Alex Balashov wrote:
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Well, indeed, but a sequential scan of many
consecutive ports like this
from the bottom of the same range can be quite a latent operation. So at
the very least the allocation strategy would benefit from being random.
Does Asterisk take that approach?
On March 13, 2017 6:04:06 PM EDT, Kjeld Flarup <kfc(a)viptel.dk> wrote:
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No there is no such thing as magic.
The most obvious way to implement the RTP port handling, is to first
open the next UDP port in the OS, and then report that back in the
Invite/200Ok. If the port cannot be opened, then simply try the next in
line.
Med venlig hilsen / Best regards
Kjeld Flarup (Christensen) M.Sc E.E, Teknisk chef
Viptel ApS, Hammershusvej 16C, DK-7400 Herning
Telefon: +45 46949949, Telefax: +45 46949950, http://viptel.dk
On 03/13/2017 01:52 PM, przeqpiciel wrote:
> Maybe there is an magic device? I know that if we have an asterisk,
> that become to us with default configuration of rtp ports sets to
> 10000_20000. And each call choose the one port fron that range. So if
> we have several asterisks with default configuratiin of rtp, there is
> possibilities to have 2 concurent calls each through another asterisk
> instance with this same rtp port. Am i right?
>
> So mqybe this magic device could see source IP address and route rtp
> to correct adterisk?
>
> 13.03.2017 7:15 AM "Alex Balashov" <abalashov(a)evaristesys.com
> <mailto:abalashov@evaristesys.com>> napisał(a):
>
> On Mon, Mar 13, 2017 at 07:08:09AM +0100, Kjeld Flarup wrote:
>
> > We run multiple Asterisk instances since 1.4 and never
> configured RTP ports.
> >
> > More challenging issues are the Asterisk DB, and the Asteisk
>
home.
> You may not have enough calls for RTP port collisions to become
>
an
> issue. Otherwise, I'm not sure how you're avoiding it, since
>
Asterisk
> isn't aware of which ports from within the range are in use.
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 <tel:%2B1-706-510-6800> / +1-800-250-5920
> <tel:%2B1-800-250-5920> (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
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-- Alex
--
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