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Yealink SIP-T48S User Manual

Yealink SIP-T48S
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User Guide for the SIP-T48S IP Phone
182
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Enter the phone number or extension you want to monitor in the Value field.
7. (Optional.) Enter the directed call pickup code in the Extension field.
If it is configured, when the monitored user receives an incoming call, the supervisor can
tap the BLF key to pick up the call directly.
8. Tap the Save soft key to accept the change or to cancel.
BLF key is configurable via web user interface at the path Dsskey->Line key.
Configuring Visual and Audio Alert for BLF pickup
You can enable visual alert feature for BLF pickup on the phone. This allows the LCD screen of
the monitoring phone to display the caller ID when the monitored line receives an incoming call.
You can also enable audio alert feature for BLF pickup on the phone. If both of them are enabled,
the monitoring phone will play a specific ring tone (refer to BLF Ring Type) when the monitored
line receives an incoming call.
To enable visual and audio alert features via web user interface:
1. Click on Features->Call Pickup.
2. Select Enabled from the pull-down list of Visual Alert for BLF Pickup.

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Yealink SIP-T48S Specifications

General IconGeneral
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Keypad illuminationYes
Display diagonal7 \
Display resolution800 x 480 pixels
AC adapter input voltage100 - 240 V
AC adapter output current2 A
AC adapter output voltage5 V
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
Front cameraNo
Voice codecsCNG, G.711Mu, G.711a, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Lines quantity16 lines
Phonebook capacity1000 entries
Number of VoIP accounts16
Dual-Tone Multi-Frequency (DTMF) modesIn-band, Out-of band, SIP info
Keypad number of keys42
Security algorithmsAES
Networking standardsIEEE 802.3af
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
Supported network protocolsSIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, HTTPS
Operating temperature (T-T)-10 - 50 °C
Operating relative humidity (H-H)10 - 95 %
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Harmonized System (HS) code85171800
Weight and Dimensions IconWeight and Dimensions
Depth225 mm
Width266 mm
Height185 mm
Package depth263 mm
Package width324 mm
Package height128 mm

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