Yealink SIP-T48G Administrator's Guide

Configuring Security Features
731
Procedure
SRTP can be configured using the configuration files or locally.
Configuration File
<MAC>.cfg
Configure SRTP feature on a
per-line basis.
Parameter:
account.X.srtp_encryption
Local
Web User Interface
Configure SRTP feature on a
per-line basis.
Navigate to:
http://<phoneIPAddress>/servl
et?p=account-adv&q=load&ac
c=0
Details of the Configuration Parameter:
Parameters
Permitted Values
Default
account.X.srtp_encryption
0, 1 or 2
0
Description:
Configures whether to use voice encryption service for account X.
0-Disabled
1-Optional
2-Compulsory
If it is set to 1 (Optional), the IP phone will negotiate with the other IP phone what
type of encryption to utilize for the session.
If it is set to 2 (Compulsory), the IP phone is forced to use SRTP during a call.
X ranges from 1 to 16 (for SIP-T48G/T46G/T29G)
X ranges from 1 to 12 (for SIP-T42G)
X ranges from 1 to 6 (for SIP-T41P/T27P)
X ranges from 1 to 3 (for SIP-T40P/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860)
Web User Interface:
Account->Advanced->RTP Encryption(SRTP)
Phone User Interface:
None

Yealink SIP-T48G Specifications

General

Expansion module support	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	-
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
AC adapter input voltage	100 - 240 V
Number of handles included	1 pc(s)

Weight and Dimensions

Width	266 mm
Height	185 mm