Pstn Pass Through; Led Light Pattern Indication - Grandstream Networks HandyTone-488 User Manual

HandyTone-488 User Manual
5.3.2

PSTN Pass Through

When HandyTone-488 is out of power or loses registration or if the network connection is down, the
RJ 11 line jack on the side of HandyTone-488 will function as a pass through jack. Users will be able
to use the same analog phone for PSTN calls.
5.4

LED Light Pattern Indication

Following tables show the LED light pattern indication.
RED LED indicates abnormal status
DHCP Failed or WAN No Cable
HandyTone-488 fails to register
GREEN LED indicates normal working status
Message Waiting Indication
RINGING
RINGING INTERVAL
Button flashes every 2 seconds (if DHCP is configured)
Button flashes every 2 seconds (if SIP server is configured)
Button flashes every 2 seconds
Button flashes at 1/10 second
Button flashes every second
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