Aastra AastraLink Pro 160 Administrator's Manual page 179

Abbreviated Number
of 1+20 for Pizza
Parlor
Example 2
The first illustration shows an abbreviation of 1+10 added, which routes to phone
number 7165300. This is an inter-office AastraLink trunk call to call group 300
using AastraLink trunk number 1. This is accessing the Sales team using an
AastraLink at another location.
Abbreviated Number
of 1+10 for Sales
Office
41-001190-02 Rev. 01, Rel. 1.2
Configuring AastraLink Pro 160 System and Network Parameters
Configuring Dial Plan Settings
4-69