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...
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...
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...
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 Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
Hello,
there are different SIP stack implementations. Some clients do SRV lookup only at first registration time, or only when they register. Ideally, they should do it for each request sent out. As you figured out, the best option is to test it before providing such device to your customers. The idea with wiki is good, so people doing such tests can share the results.
I do not get the question regarding the out of service interval when the client does not support srv. How you computed the 5+5 interval?
Cheers, Daniel
On 10/26/05 14:45, Zen Kato wrote:
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 Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
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: users-bounces@openser.org [mailto:users-bounces@openser.org] Namens Zen Kato Verzonden: woensdag 26 oktober 2005 13:45 Aan: helge@smartnet.no CC: users@openser.org 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 Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
_______________________________________________ Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
-
Daniel-Constantin Mierla -
Helge Waastad -
Klaus Darilion -
Paul van Schagen -
Zen Kato