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Yealink SIP-T48S User Manual

Yealink SIP-T48S
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User Guide for the SIP-T48S IP Phone
202
Intercom
Intercom is a useful feature in an office environment to quickly connect with the operator or the
secretary. You can tap the intercom key to automatically connect with a preconfigured target
extension for outgoing intercom calls, and the target extension will automatically answer
incoming intercom calls by default. You can also use intercom key to monitor a specific line for
status changes on the phone.
Note
Configuring the Intercom Feature on the IP Phone
Configuring an Intercom Key
To configure an intercom key via phone user interface:
1. Tap More.
2. Tap the desired line key.
3. Tap the gray box of the Type field, and then select Intercom from the pull-down list.
4. Tap the gray box of the Account ID field, and then select the desired line from the
pull-down list.
5. (Optional.) Enter the string that will appear on the touch screen in the Label field.
6. Enter the target extension number in the Value field.
7. (Optional.) Enter the directed call pickup code in the Extension field.
If it is configured, when the target extension receives an incoming call, the supervisor can
tap the intercom key to pick up the call directly. Contact your system administrator for
more information.
8. Tap the Save soft key to accept the change or to cancel.
Intercom is not available on all servers. Contact your system administrator for more information.

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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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