This string defines the global title number in called party
address when it is sent to the peer. This has no default value and must be
configured when routing on GT. All non-number characters are ignored. With
SIM Pack revision 2.10, the global title from a previous related
communication is used. For example, location update is done using the
global title that the peer used with authentication
dialogue.
# Use Ireland reserved drama use number as an example.
# Needs to be defined to match your environment.
PeerGlobalTitle 353209134321