Motorola MC70 Integration Manual page 107

Select the 8
2. 50 MHz Enabled
to PCS1900MHz/DCS1800MHz).
Disable
3. Handover Enhancement
Tap to exit settings.
4. ok
check box to enable the radio to hand over in the band of 850MHz (in addition
only for some special networks outside of the United States and Europe.
MC7004/94 - GSM Configuration 5 - 17