callgroup and pickupgroup may only be specified for FXO-signaled channels;
however, the chan_dahdi sample config had these options uncommented in
the [channels] section, thus applying these settings to all channels,
resulting in warnings. Comment these out so there are no warnings with
an unmodified sample config.
Resolves: #1552
; If you need to pick up an FXS signalled channel directly, you can have it
; dial a Local channel and pick up the ;1 side of the Local channel instead.
;
-callgroup=1
-pickupgroup=1
+;callgroup=1
+;pickupgroup=1
;
; Named ring groups (a.k.a. named call groups) and named pickup groups.
; If a phone is ringing and it is a member of a group which is one of your