According to our tests, the Polycom 301 and 501 both failover instantly using DNS SRV records.  The grandstream BT101 and GXP-2000 also failover using DNS SRV, but only upon re-registration.  This requires that you set the registration interval to a very small value.  Has anyone gotten the sipura phones to use DNS SRV?  They are supposed to support it, but I could not find documentation about it anywhere.

Anish Basu
Field Systems Engineer
Softel, Inc.
Phone: (732) 705-9202
Cell: (732) 312-6634


From: Justin Richards [mailto:[EMAIL PROTECTED]
Sent: Saturday, September 17, 2005 7:59 AM
To: [EMAIL PROTECTED]; Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] DNS SRV supported phones

Have you found any information yet about this?  I am looking for good and affordable phones that can use DNS myself, but not for failover, simply for ease of use by some non-computer savvy family members.  So far, I am afraid I'm going to be limited to USB/software phones.  I would greatly appreciate any advice you can share.  Thanks!
 

 
On 7/21/05, Anish Basu <[EMAIL PROTECTED]> wrote:
Hi,

I am looking to use DNS SRV records for load balancing and failover across
multiple Asterisk servers.  The Asterisk servers share the exact same
configuration via mySQL replication.  I would like to know which particular
SIP phones support DNS SRV and would like to hear of any success stories.
Many SIP phones claim to support DNS SRV, yet there is usually very little
documentation on how to configure it to do so.  Any input is appreciated.
Thanx in advance.

Anish Basu
Field Systems Engineer
Softel, Inc.
Phone: (732) 705-9202
Cell: (732) 312-6634

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