[asterisk-users] Issues with making calls

[Mojo with Horan & Company, LLC]

joakimsen at gmail.com wrote:
> ZAP/G1 will dial starting from channel 1. ZAP/R1 will dial starting
> from the last channel of the group.
>   

Actually, ZAP/g1 mean start with first channel and work up.  ZAP/G1 mean 
start with last channel and work down.  'r' and 'R' operate in similar 
directions, but they also remember where they left off last time -- 
"Round-Robin".

http://www.voip-info.org/wiki/view/Asterisk+ZAP+channels
under "Dialing a Group"