Samsung SGH x426 User Manual page 165

Dual Band
Ability to handle any of the following types of network:
GSM 850 and GSM 1900 MHz bands, for greater call
success and wider roaming.
Voice Mail
Computerized answering service that automatically
answers your calls when you are not available, plays a
greeting (optionally in your own voice) and records a
message.
Glossary 161