[OpenSBC] Sip Registration to Voip Provider.

[Dinesh D. <din...@gm...>]

Hi All,



I want to use Open SBC for *SIP TRUNKING*.



Here is the scenario.



Internal LAN                                          External LAN

------------------------------------

                                    |

Softphone ----> PBX ------|----> OpenSBC -----> Voip Provider


|

                                    |

-------------------------------------



I wish that only OpenSBC should be visible to external world and thus it
should be able to register itself to VoipProvider.



Also I want that OpenSBC should use Enum lookup first for E-164 numbers on
our enum server and if OpenSBC does not receive any response from Enum
server then it should be able to connect the call through Voip Provider.



Now here are the questions.



   1. How to register OpenSBC with VoipProvider irrespective of PBX?

t means that there should be fields in Web GUI to enter registration request
for Voip Provider and the moment OpenSBC service is started, it should
register itself with Voip Provider.

   1. How to set preference order between Enum lookup and normal call
   through VoipProvider?

It means whenever an Sip INVITE is sent from PBX to OpenSBC for long
distance calls, OpenSBC should first search that number in our enum servers
and if it is found, call is made directly to the Receiver else OpenSBC
should direct the call to VoipProvider and create a normal call.

   1. What are the entries to be given on B2B routing page for above Enum
   and normal call to VoipProvider?



Thanks in advance for you help.



Dinesh