When ast_call() operates on a local channel, it copies a lot of things
from the local;1 channel to the local;2 channel. This includes among
other things, channel variables and party id information.
Other reasons it was a bad idea to run predial on the local;2 channel:
1) The channel has not been completely setup. The ast_call() completes
the setup.
2) The local;2 caller and connected line party information is opposite to
any other channels predial runs on. (And it hasn't been setup yet.)
* Partially back out -r366183 by removing the chan_local implementation of
the struct ast_channel_tech.pre_call callback.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@366546 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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