Audiovox CDM-4000 - Manual (Page 59)

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System Features
A/B System Selection (F51)
This feature permits you to select which Cellular sys-
tem (A or B) your phone uses. When you turn the phone
on, it remembers the last A/B setting and will scan the
radio channels based on that setting.
Leave this setting as it has been preprogrammed un-
less you have a reason to alter the system selection.
To alter the system selection:
1. Press F 5 JKL 1 .
The current mode will be
displayed.
2. You can change the current mode by or .
3. Press F to set.
• AUTO ROAM – Auto Roam Mode
The phone will scan the priority systems first, and then
non-priority systems. For more information as to how
this mode works, see Enhanced Roaming below.
• HOME – Home Only Mode
You can place or receive calls only within your home
area or home affiliated area.
• A-ONLY – A-System Only Mode
The phone will scan the A-system only and prevents
switching over to the B-system.
• B-ONLY – B-System Only Mode
The phone will scan the B-system only.
Note: If your LCD displays “AUTO ROAM”, your phone
has been pre-programmed to operate in the Auto
Roam Mode only.
Enhanced Roaming
Cellular systems are identified by a number called System
Identifier or SID. Your phone is equipped with a Preferred
Roaming List (PRL) which can be programmed by your
Carrier to take advantage of the families of cellular system
(SIDs) that your Carrier owns, or has special billing ar-
rangements with, in different cities.
In your Home System Area, both “No Service” and “ Rm ”
are off in your display. Outside of the Home System in Ser-
vice Areas closely associated with your Carrier, the phone’s
display may appear the same as when operating in the
Home System.