Is there a limit to the number of parked calls Asterisk can handle?
I doubt there is a hard-coded limit for parked calls specifically, but I don’t know the answer. If you ask in #asterisk-dev when devs are around, a developer familiar with the parking code could probably tell you.
As you probably already know, you can limit calls in a variety of ways, one of the simplest and probably most general is the maxcalls option in asterisk.conf.
Thanks. I will try to test how many parked calls Asterisk can handle using SIPp.