Grandstream Networks, Inc. HT–286 User Manual Page 13 of 28
Firmware 1.1.0.31 Last Updated: 1/2009
The HT–286 supports all the traditional and advanced telephony features.
TABLE 6: HT–286 CALL FEATURE DEFINITIONS
Key Call Features
*23 3-way conference
*30 Block Caller ID (for all subsequent calls)
*31 Send Caller ID (for all subsequent calls)
*50 Disable Call Waiting (for all subsequent calls)
*51 Enable Call Waiting (for all subsequent calls)
*67 Block Caller ID (per call)
*70 Disable Call Waiting (per call)
*71 Enable Call Waiting (per call)
*72 Unconditional Call Forward. Dial “*72”, wait for dial tone. Dial the
forward number and “#” for a dial tone, then hang up.
*73 Cancel Unconditional Call Forward. To cancel “Unconditional Call
Forward”, dial “*73”, wait for dial tone, then hang up.
*82 Send Caller ID (per call)
*87 Blind Transfer
*90 Busy Call Forward. Dial “*90” , wait for dial tone. Then dial the
forward number and “#” for a dial tone, then hang up.
*91 Cancel Busy Call Forward. To cancel “Busy Call Forward”, dial “*91”,
wait for dial tone, then hang up.
*92 Delayed Call Forward. Dial “*92”, wait for dial tone. Then dial the
forward number and “#” for a dial tone, then hang up.
*93 Cancel Delayed Call Forward. To cancel Delayed Call Forward, dial
“*93”, wait for dial tone, then hang up.
Flash/Hook Toggles between active call and incoming call (call waiting tone). If not
in conversation, flash/hook will switch to a new channel for a new call.
HT–286 supports fax in two modes: 1) T.38 (Fax over IP) and 2) fax pass through.
T.38 is the preferred method because it is more reliable and works well in most network conditions. If the
service provider supports T.38, please use this method by selecting T.38 as fax mode (default). If the
service provider does not support T.38, pass-through mode may be used.
Following tables show the LED light pattern indication.