Obitalk as a SIP trunk.
Usetheforceobiwan:
The case I am referring to is if the two SP's of a 100/110 or all four SP's of a 200/202 are used exclusively by GV connections, beyond call forking using GV (which to the best of my knowledge does not pass the originating CID) your only choice to relay it another endpoint is to use Obitalk to connect to an Obion softphone or another Obi hardware device. Granted you could use Obitalk to pass the call to another Obi with a free SIP SP slot and then forward it from there, but what I am talking about it is the ability to say connect an Obitalk trunk directly to a softphone or IP phone. At this point this appears not possible because you cannot register a softphone or IP phone to an Obitalk trunk directly, you need the Obion program or an Obi hardpoint to do the termination.
What got me thinking about this is a reference in the Admin manual which discusses adding an IP phone on the LAN side using a SIP SP BUT also makes reference to using a proxy address of Obi # > 5XXXXXXXX.pnn.obihai.com:port. The pnn.obihai.com address would be outside your LAN and perhaps they use this similar to a dynamic DNS reference but maybe a connection through this proxy address could be utilized in a different manner from the outside. Again, with the inability to register to the Obitalk network using SIP, you probably could not originate calls from your softphone but maybe you could use the pnn.obihai.com proxy for URI forwards. This is kinda getting ahead of my knowledge scope so I thought more enlightened or experienced minds would know.
QBZappy:
@Usetheforceobiwan
Finally some details. We will need to put some thought into this, and make some experiments.
Quote from: Usetheforceobiwan on December 05, 2013, 01:17:27 pm
5XXXXXXXX.pnn.obihai.com:port.
BTW this has come up before. AFAIK nothing came of it other than some curiosity about the address.
QBZappy:
@Usetheforceobiwan
Using an OBi202 with an IP Phone as an IP-PBX Extension
http://blog.obihai.com/2013/03/using-obi202-with-ip-phone-as-ip-pbx.html
Are you referring to something like the above set up?
Usetheforceobiwan:
Quote from: QBZappy on December 06, 2013, 08:47:04 pm
@Usetheforceobiwan
Using an OBi202 with an IP Phone as an IP-PBX Extension
http://blog.obihai.com/2013/03/using-obi202-with-ip-phone-as-ip-pbx.html
Are you referring to something like the above set up?
Yeah, that's the one. What I did not understand was if the remote IP phone is behind the remote Obi and the remote Obi is providing a proxy locally for the remote IP phone , why would you need the 5XXXXXXXX.pnn.obihai.com proxy?
QBZappy:
@Usetheforceobiwan
We can get lost in the translation. Rereading the instructions in that tutorial is an exercise in English and logic. You can easily get confused with the details of which OBi units that they are making reference to. Their choice of words has to be read in the context of a software engineer and not as a lay person. Basically this is a dial plan crafted to twist the calls originating from a sip account, transported over OBiTALK service, twisted back to sip.
The "Proxy = 500111101.pnn.obihai.com:5061" specifies the gateway OBi with a unique OBi unit number and port. It remains to be seen if something like "ANYTHING@500111101.pnn.obihai.com:5061" can be used in any useful manner. This wont work because it is not exactly a SIP addressing schema. There is one dot too many. Perhaps something like "500111101@pnn.obihai.com:5061" could work.
Going off topic, this is a very interesting exercise to show that you can spend money on two OBi units to connect two ip phones to a PBX. It seems to me that the far away ip phone can register just fine to the far away pbx without adding two additional ATAs in the path. My house ip phone is connected to my office pbx directly. In my case I use a VPN, however knowing the public ip address of the pbx would do the trick just as well.
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