[asterisk-users] SIP DNS SRV

[Jonas Kellens]

On 11/09/2010 03:20 PM, Gareth Blades wrote:
> Jonas Kellens wrote:
>    
>> On 11/09/2010 02:12 PM, Gareth Blades wrote:
>>      
>>> Jonas Kellens wrote:
>>>
>>>        
>>>> On 11/08/2010 09:50 PM, Jonas Kellens wrote:
>>>>
>>>>          
>>>>> Hello,
>>>>>
>>>>> SIP DNS SRV records are not working.
>>>>>
>>>>> My Grandstream uses the SRV records to find the first Asterisk server
>>>>> to register to. This works.
>>>>>
>>>>> But when I shut down the Asterisk proces on server 1 and I restart my
>>>>> GXP 2010, the phone does not register to server 2... No mather how
>>>>> long I wait, there is no registration coming in...
>>>>>
>>>>> When I start the Asterisk proces again on server 1, then here
>>>>> registration comes in.
>>>>>
>>>>>
>>>>> Kind regards,
>>>>> Jonas.
>>>>>
>>>>>            
>>>> More info :
>>>>
>>>> [Jonas at jonas ~]$ host -t srv _SIP._udp.sip10.domain.tld
>>>> _SIP._udp.sip10.domain.tld has SRV record 25 10 5060 sip2.domain.tld.
>>>> _SIP._udp.sip10.domain.tld has SRV record 5 10 5060 sip1.domain.tld.
>>>>
>>>>
>>>>          
>>> It sounds like the grandstream phones are not fully compliant with the
>>> SRV standard. They are probably just looking for the lowest priority
>>> entry and hardcoding that to be used all the time internally.
>>>
>>> If you restart the phone does it work?
>>> It might try the 25 priority entry if it cannot initially contact the
>>> primary server.
>>>
>>>        
>> The way I test it :
>>
>> - Grandstream turned off.
>> - Stop asterisk server1 (/sbin/service asterisk stop)
>> - Turn on Grandstream (power up)
>>
>> Conclusion :
>> Grandstream does not register. No register coming in on server2.
>>
>> Finally :
>> - Start Asterisk again on server1 (/sbin/service asterisk start)
>>
>> Conclusion :
>> Grandstream registers to server1.
>>
>> Jonas.
>>
>>      
> Then it looks like the Grandstream phone dont fully support DNS SRV.
> maybe a firmware update will fix it.
>    

I use firmware version 1.2.4.3 
<http://grandstream.com/DOWNLOAD/FIRMWARE/BT200_GXP/Release_BT200_GXP_1.2.4.3.zip>, 
which is the latest stable.

Has anyone on this list implemented a successful Grandstream with DNS 
SRV support ?!


Kind regards,
Jonas.

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