Samsung SEPA920WSAQST - Manual (Page 97)

Section 2D: Controlling Your Roaming Experience 75
Roaming
Checking for Voicemail Messages While Roaming
When you are roaming off the network available to you, you will not receive
on-phone notification of new voicemail messages. Callers can still leave
messages, but you will need to periodically check your voicemail for new
messages if you are in a roaming service area for an extended time.
To check your voicemail while roaming:
1. Dial 1 + area code + your wireless phone number.
2. When you hear your voicemail greeting, press .
3. Enter your passcode at the prompt and follow the voice prompts.
When you return to the network available to you, voicemail notification will
resume as normal.