Hello Zen, We sell GS in the Netherlands on our website www.voipwereld.nl and therefore we tested DNS SRV on a number of different GS models. DNS SRV works with Grandstream HT 488/496 boxes perfectly. These boxes automatically detect if one SIP server is down and move over to the next one.
DNS SRV is also implemented in GXP-2000 but appears to do a DNS query once at start up instead of before every call. This is not perfect and should be done before every call or REGISTER without need for a reset. This will be fixed next firmware release of the GXP-2000 according to GS. Best regards Paul van Schagen -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens Zen Kato Verzonden: woensdag 26 oktober 2005 13:45 Aan: [EMAIL PROTECTED] CC: [email protected] Onderwerp: Re: [Users] SIP clients and DNS SRV Hi, I posted on [serusers] regarding DNS SRV,t_replicate,backup server and GS phones. My test resut of BT101(1.0.7.11-newest) and GXP2000(1.0.1.9) was no good. My question is eventhough we set up DNS SRV on server side, if sip clients does not suppot DNS SRV, do we have a risk of (5+5)minutes out of service time when we set up 5 minutes REGISTER intervals? If UA have multiple REGISTERs outgoing lines such as GXP2000, we could set up Line1 for sip1&sip2(DNS SRV) Line2 for sip3 server. In this case if line1 does not work, the user can use Line2. Xlite can register 3 sip servers, but only default sip proxy can use as outgoing line, so the Xlite users have (5+5)minutes out of service risk. Does Cisco 7960 work perfectly on DNS SRV? Regards, Zen Helge Waastad wrote : > Hi, > I've started to add some more information to voip-info. > I'm still waiting for response from Grandstream and others on their > support (or future support) for DNS SRV. > > br hw > > On Wed, 2005-10-19 at 17:32 +0200, Klaus Darilion wrote: > > Hi Helge! > > > > According to my tests, also SNOM can do SRV based failover. > > > > I've published my test results at: > > http://www.voip-info.org/wiki/view/SRV+implementations > > > > Please add your test results to this. > > > > regards > > klaus > > > > Helge Waastad wrote: > > > Hi, > > > this is not a technical question regarding OpenSER, but more of req for > > > information. > > > > > > I'm using Cisco phones and gateways and have implemented DNS SRV > > > redundancy. > > > However, I have never seen a SIP phone that really works with DNS SRV > > > redundancy, except from Cisco. (which actually works as a charm) > > > > > > Does anyone know other phones that can use dns srv for redundancy? > > > > > > At least Cisco tries the next DNS SRV entry if it receives a port > > > unreachable from the highest priority proxy... > > > > > > > > > -- > mvh/best regards > Helge Waastad > System Engineer > Smartnet > (+47)67830017 > > _______________________________________________ > Users mailing list > [email protected] > http://openser.org/cgi-bin/mailman/listinfo/users > _______________________________________________ Users mailing list [email protected] http://openser.org/cgi-bin/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] http://openser.org/cgi-bin/mailman/listinfo/users
