Brand: Gigaset
Category: Telephones
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for S455
Uploaded: Nov. 21, 2025, 8:20 p.m.
Manual Publish Date: 2005-01-01
Warranty Information
The manufacturer's Guarantee covers new devices for 24 months from purchase against manufacturing or material faults.
Handset at a glance
1 Display in idle status
2 Charge status of the batteries (flat to full)
3 Display keys
4 Message key: Access to calls and message lists.
5 End call key, On/Off key: End call, cancel function, go back one menu level, back to idle status, activate/deactivate handset.
6 Hash key: Key lock on/off.
7 Call-by-call list key: Open call-by-call list.
8 Connection socket for headset
9 Microphone
10 Recall key: Confer (Flash), Insert a dialling pause.
11 Star key: Ringtones on/off, Open table of special characters.
12 Key 1: Select answering machine/network mailbox.
13 Talk key: Answer a call, open last number redial list.
14 Handsfree key: Switch between earpiece and handsfree mode.
15 Control key
16 Answering machine symbol
17 Signal strength
Troubleshooting and error codes
| Problem | Solution |
|---|---|
| You cannot listen to messages on the network mailbox. | Your phone system is set for pulse dialling. Set your phone system to tone dialling. |
| The calls list does not indicate a time for a message. | Date/time are not set. Set the date/time (page 9). |
| The answering machine reports "PIN is incorrect" during remote operation. | 1. System PIN entered is incorrect. Repeat input of system PIN. 2. System PIN is still set to 0000. Change system PIN to a number other than 0000 (page 46). |
| The answering machine does not record any messages/has switched over to 'announce only'. | Its memory is full. Delete old messages. Play back new messages and delete. |