[asterisk-users] OPENR2 in Thailand

[Chris Ziomkowski]

Hi Peter,

Basically, I had to rewrite the R2 state machine to use pulsed outbound 
signalling instead of compelled, and hack in support of the DTMF tone 
groups instead of R2 frequencies. It was messy, but possible. The 
inbound side was much cleaner, and you may be correct when you say you 
could just use China R2 for that. Is this application going to be 
limited to inbound, or do you need outbound dialing?

The originating switch may also make a difference. Just be prepared for 
that. TOT is switching some of their stuff over to Huawei, which in my 
experience causes issues (however, no idea about their R2 support in 
general). We were connecting to a Siemens EWSD out of Prakanong, and it 
proved pretty reliable. Not much variation at all. This application was 
used for a time to do call ins for the 07 show, so we were doing very 
heavy signalling for about 1 hour every week. TA had configured a 2:1 
ratio for us on MF senders on the incoming side. Average call duration 
was only 30 seconds, and 120 lines were packed for 1 hour straight.

I assume you've already asked the Turtlephone Organization of Thailand 
about ISDN? Have you asked more than once? Often times they'll just say 
"no we don't support it" because they're lazy or don't know, not because 
it isn't possible. If you haven't actually had a sit down with an 
engineer in their offices, I wouldn't necessarily believe them if the 
salesrep tells you they can't do it. A bottle of Johnny Walker as a gift 
can often make these discussions go easier.

Chris

Peter Lindquist wrote:
> We are using TOT (Telephone Organization of Thailand). They are very 
> messy on their side so we are sorting out some unrelated problems with 
> them right now - very slow response.
>
> I believe you are correct when you say that outbound dialing is DTMF, I 
> have heard this before too.
>
> Out of curiosity what did you have to change in the C libraries?
>
> Peter
>
> Chris Ziomkowski wrote:
>   
>> I got Asterisk to work with R2 in Thailand about 3 years ago. This was 
>> back before OpenR2, and I had to modify the C libraries directly. Of 
>> course, outbound dialing is DTMF, not R2, however inbound is pretty 
>> standard. This was on TA  (now True) circuits.
>>
>> I guess I can't tell you much about how to set it up today as my 
>> experience is so out of date, but I can offer you encouragement that it 
>> will work for you if you put in the effort. There is nothing fundamental 
>> which will cause it to fail. Which carrier are you planning on 
>> connecting to?
>>
>> Chris
>>
>> Moises Silva wrote:
>>   
>>     
>>> Hello Peter,
>>>
>>> You can ask this better in the asterisk-r2 mailing list.
>>>
>>> I don't know of anyone that has used OpenR2 in Thailand, but I am
>>> interested in adding support for that variant. Contact me at this same
>>> e-mail address or via Google talk (my e-mail address works for MSN as
>>> well ) to discuss further details.
>>>
>>> Moisés Silva
>>>
>>> On Mon, Oct 20, 2008 at 12:58 PM, Peter Lindquist
>>> <peter.lindquist.th at gmail.com> wrote:
>>>   
>>>     
>>>       
>>>> Dear All,
>>>>
>>>> I'm looking for someone who has implemented OpenR2 in Thailand
>>>> successfully. Any settings, advice, caveats etc. are welcome.
>>>>
>>>> Best regards,
>>>>
>>>> Peter Lindqvist
>>>> www.voxion.net
>>>>
>>>> _______________________________________________
>>>> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>>>>
>>>> asterisk-users mailing list
>>>> To UNSUBSCRIBE or update options visit:
>>>>   http://lists.digium.com/mailman/listinfo/asterisk-users
>>>>
>>>>     
>>>>       
>>>>         
>>>   
>>>     
>>>       
>> _______________________________________________
>> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>>
>> asterisk-users mailing list
>> To UNSUBSCRIBE or update options visit:
>>    http://lists.digium.com/mailman/listinfo/asterisk-users
>>
>>   
>>     
>
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
>