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 <k...@viptel.dk> wrote: >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" <abalas...@evaristesys.com >> <mailto:abalas...@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/ >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users >mailing >> list >> sr-users@lists.sip-router.org ><mailto:sr-users@lists.sip-router.org> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >> <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >> >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing >list >> sr-users@lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Alex -- Principal, Evariste Systems LLC (www.evaristesys.com) Sent from my Google Nexus. _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
