Yealink SIP-T21P User Manual

Basic Call Features
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before forwarding from the After Ring Time field.
The default ring time is 12 seconds.
4) (Optional.) Enter the no answer forward on code or off code respectively in
the On Code or Off Code field.
4. Press the Save soft key to accept the change or the Back soft key to cancel.
The icon on the idle screen indicates call forward is enabled.
To enable call forward in custom mode:
1. Press Menu->Features->Call Forward.
2. Press or to select the desired account, and then press the Enter soft key.
3. Press or to select the desired forwarding type, and then press the Enter
soft key.
4. Depending on your selection:
a.) If you select Always Forward, you can enable it for a specific account.
1) Press or , or the Switch soft key to select Enable from the Always
field.
2) Enter the destination number you want to forward all incoming calls to in
the Forward to field.
3) (Optional.) Enter the always forward on code or off code respectively in the
On Code or Off Code field.
You can also enable always forward for all accounts. After always forward was
enabled for a specific account, do the following:
1) Press or to scroll to the Always field.
2) Press the All Lines soft key.
The LCD screen prompts “Copy to All Lines?”.
3) Press the Ok soft key to accept the change or the Cancel soft key to cancel.

Yealink SIP-T21P Specifications

General

Display	132 x 64-pixel graphical LCD
Network	10/100 Mbps Ethernet
SIP Accounts	2
Wall Mountable	Yes
Audio Features	HD Voice
Protocols	SIP v1 (RFC2543), v2 (RFC3261)
Voice Codecs	G.711(A/μ), G.729AB, G.726, G.722
Phonebook	1000 entries
Call Features	Call hold, call waiting, call transfer, call forward, 3-way conferencing
Security	SRTP, TLS, 802.1x, HTTPS
Ethernet Ports	2 x RJ45 10/100 Mbps
Power Supply	Power over Ethernet (PoE) or optional power adapter
Operating Humidity	10% to 90% (non-condensing)
Languages	Supports multiple languages
PoE	Yes (802.3af)
Operating Temperature	-10°C to 50°C