[Opalvoip-user] SIP Registrar fallback question

[Reif, R. C. N. 4.6.2.3 <rob...@na...>]

I'm trying to add SIP Registrar fallback to my application.

I have 2 registrars, a primary and a secondary.  I must only use the secondary when the primary goes offline.  That means I am not allowed to register to both at the same time.

I'm trying to implement the fallback just using OnRegistration, OnRegistrationFailed, and OnRegistrationStatus.

If I register successfully with the primary and it goes down later, I get an OnRegistrationFailed when the keep alive fails and I can then register with the secondary.  However if the primary is offline when my app starts, I never get an OnRegistrationFailed (just one OnRegistrationStatus(Trying)).  I can add my own timer to detect the offline registrar but I was hoping OPAL would do that for me.

Is it possible to have OPAL notify me using OnRegistrationFailed (or OnRegistrationStatus(Trying)) periodically for a registration that never completed just like it does for a registration that completed and then failed?