[OpenSIPS-Users] Doubt about MID_REGISTRAR module

[Liviu Chircu]

On 27.01.2020 19:34, Social Boh wrote:
> so why in the Tutorial de INVITE comes from Main Registrar?

Hi, Social Boh!

When using mid-registrar, the INVITE flow will be:

        INVITE            INVITE             INVITE INVITE
Alice --------> MID-REG --------> MAIN-REG --------> MID-REG --------> Bob

The _main_ feature about mid-registrar is that it always rewrites the 
Contact [1] to
point to the current server (regardless if in mode 0, 1 or 2). This is 
why the
MAIN-REG forwards the INVITE to MID-REG, and not directly to Bob.

[1]: 
https://opensips.org/html/docs/modules/3.1.x/mid_registrar.html#sip-flow-insertion

Best regards,

-- 
Liviu Chircu
www.twitter.com/liviuchircu | www.opensips-solutions.com

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