[Serusers] Usrloc question

[Darren Nay]

One last try...  :)

Does anyone out there have any advice for me on this issue?  I'm stuck 
and could really use some help.  I've been trying to find a solution 
myself for the past week or so and have been less than successful.

Thanks in advance!
Darren Nay

>> Hey all,
>>
>>  
>>
>> I have a question regarding usrloc.  I have run into a problem..
>>
>>  
>>
>> We have static routes sent to an asterisk server for all of our SIP 
>> usernames.  In addition our IAD’s will register with the same 
>> username, so that calls coming into our switch for that username will 
>> be routed to both the asterisk box and the SIP IAD.  This way, 
>> whichever endpoint (IAD or asterisk) answers the call first will take 
>> the call.
>>
>>  
>>
>> For example. 
>>
>>  
>>
>> root:/ # serctl ul show +18646404810
>>
>> <sip:+18646404810 at 192.168.1.60>;q=1;expires=-1012151
>>
>> <sip:+18646404810 at 192.168.1.157:5060>;q=;expires=403
>>
>>  
>>
>> 192.168.1.60 is the asterisk server.  This is a static route added by 
>> serctl.
>>
>> 192.168.1.157 is my IAD which registers with the switch every 10 minutes.
>>
>> So when calls are made to (864) 640-4810 then SER will send an INVITE 
>> to both location.
>>
>>  
>>
>> I explained all of this just to explain now what my problem is, and 
>> ask if anyone may know a possible solution.
>>
>>  
>>
>> Now, we also use asterisk to perform call fwd’ing functions.  
>> Asterisk will answer the call and then originate another call out 
>> back to SER to a new location.  Now the problem! (finally!)  This 
>> call fwd’ing method works very well in most cases, except that if the 
>> call fwd’ing is being sent to another location registered with SER 
>> then it will be redirected back to asterisk again, albeit to a 
>> different URI, and asterisk will kill the call because it thinks that 
>> it has looped (which I guess it has… sort of).
>>
>>  
>>
>> So, I’m wondering if there is possibly a way to retrieve only the 
>> usrloc locations that don’t contain the IP address 192.168.1.60 in 
>> the contact URI?  This way I can just check if the src_ip is 
>> 192.168.1.60 and if so then retrieve all the usrloc locations – 
>> without asterisk – and the call will not be redirected back to asterisk.
>>
>>  
>>
>> Is this possible?  Or if anyone has any other ideas that may help 
>> then I am definitely open to suggestions. 
>>
>>  
>>
>> Thanks for your help!!
>>
>>  
>>
>> Darren Nay
>>
>> Ionosphere, Inc
>>
>> VoIP Network Development
>>
>> dnay at ionosphere.net <mailto:dnay at ionosphere.net>
>>
>>  
>>
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