REQUEST_DIAL_EMERGENCY_CALL RIL request.

[jaoo]

I am currently figuring out how emergency calls happen on
Android. Looking at the radio log I notice the rild daemon
receives a REQUEST_DIAL_EMERGENCY_CALL request before performing
the call itself.

Trying to know more about this RIL request I notice this request
does not appear in ril.h, so -I guess- it seems like this is a
non-standard addition to the RIL. So my question is: Is that
possible? I mean, are RIL implementors able to add any additonal
RIL request in their implementations?

Note: Found in Samsung Galaxy S2 running Gingerbread.

[Chaitanya]

Yes,nothing is stopping them from adding additional requests.