Henning Westerholt wrote:
[using asterisk for REGISTER] We have never done it that way and we are not sure whether it is possible or not, whether it is acceptable SIP-wise or not
Relaying the REGISTER to asterisk will work probably, but i'd use the solution were i'm comfortable with and confident that it will work out in the end.
A proxy can statefully relay anything, so this definitely works. I just don't think it's the right approach here.