Brand: TOSHIBA
Category: Telephone
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for SG-1991
Uploaded: Nov. 21, 2025, 6:07 p.m.
Warranty Information
This is a one-year limited warranty covering defects in materials or workmanship.
Making a Call:
Handset On The Base: Pick up handset, press TALK, listen for dial tone, dial number. OR Pick up handset, dial number, press TALK.
Handset Off The Base: Press TALK, listen for dial tone, dial number. OR Dial number, press TALK.
To hang up: Press TALK or return handset to base.
Receiving a Call:
Handset On The Base: Pick up handset (AutoTalk) or press TALK.
Handset Off The Base: Press any button (Any-Key Answer) or press TALK.
To hang up: Press TALK or return handset to base.
With the Base speakerphone: Press SPEAKER. To hang up, press SPEAKER.
Handset On The Base: Pick up handset, press TALK, listen for dial tone, dial number. OR Pick up handset, dial number, press TALK.
Handset Off The Base: Press TALK, listen for dial tone, dial number. OR Dial number, press TALK.
To hang up: Press TALK or return handset to base.
Receiving a Call:
Handset On The Base: Pick up handset (AutoTalk) or press TALK.
Handset Off The Base: Press any button (Any-Key Answer) or press TALK.
To hang up: Press TALK or return handset to base.
With the Base speakerphone: Press SPEAKER. To hang up, press SPEAKER.
Troubleshooting and error codes
| PROBLEM | SOLUTION |
|---|---|
| The handset battery pack does not charge. | • The charging contacts of the handset and base are not clean. → Clean them with a dry cloth. • The battery is not connected with correct polarity. → Install the battery pack correctly. • The battery is several years old. → Replace with a new battery. |
| Battery pack becomes low quickly. | • The battery was not fully charged at the initial charging. → Charge the battery for 12-16 hours without any interruption. • The battery is several years old. → Replace with a new battery. |
| Can not make or receive calls. Can not hear dial tone. | • The AC adaptor of the base unit is disconnected. → Plug the AC adaptor into the base unit and the AC 120V outlet. • The battery is low. → Place the handset on the base unit to recharge. • Telephone line cord is disconnected. → Check both ends of the telephone jack. • The previous call was not disconnected. → Press TALK or SPEAKER to disconnect the line. • Trouble with the telephone line. → Check an extension line. • Outlet used is controlled by a wall switch in its OFF position. → Relocate it to another outlet. |
| Low battery blinks on the display. | • The battery is low. → Return the handset to the base. |
| The handset does not ring or receive a page. | • The handset is located away from the base or the battery has been discharged. → Return the handset to charge when finished with your call. • The digital security code is changed. → Remove the handset from the base unit and press and hold PAGE. While the handset is emitting, return the handset to the base unit. • The battery is low. → Place the handset on the base unit to recharge. |