Security Features
421
Web UI Security->Server Certificates->Load Server Certificates File
Parameter static.server_certificates.delete
<y0000000000xx>.cfg
Description
It deletes all uploaded server certificates.
Example:
static.server_certificates.delete = http://localhost/all
Permitted
Values
http://localhost/all
Default Blank
Parameter static.phone_setting.reserve_certs_enable
<y0000000000xx>.cfg
Description
It enables or disables the IP phone to reserve custom certificates after it is reset to
factory defaults.
Permitted
Values
0-Disabled
1-Enabled
Default 0
Parameter phone_setting.reserve_certs_config.enable
[2]
<y0000000000xx>.cfg
Description
It enables or disables the IP phone to reserve the trusted and server certificates
settings after the phone reset to factory defaults.
Permitted
Values
0-Disabled, the values of the parameters “static.security.trust_certificates”,
“static.security.ca_cert”, “static.security.cn_validation” and “static.security.dev_cert” will
be reset.
1-Enabled, the values of the parameters “static.security.trust_certificates”,
“static.security.ca_cert”, “static.security.cn_validation”, “static.security.dev_cert” and
“phone_setting.reserve_certs_config.enable” will not be reset.
Default 0
[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for
T41P/T41S/T27P/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2; for T19(P) E2, X=1.
[2]
If you change this parameter, the IP phone will reboot to make the change take effect.
Secure Real-Time Transport Protocol (SRTP)
Secure Real-Time Transport Protocol (SRTP) encrypts the audio streams during VoIP phone calls to avoid
interception and eavesdropping. The parties participating in the call must enable SRTP feature
simultaneously
. When this feature is enabled on both phones, the type of encryption to use for the
session is negotiated between the IP phones. This negotiation process is compliant with
When you places a call on the enabled SRTP phone, the IP phone sends an INVITE message with the
RTP/RTCP encryption algorithm to the destination phone. As described in
, RTP/RTCP streams
may be encrypted using an AES (Advanced Encryption Standard) algorithm.
Summary of Contents for T48G
Page 1: ...linekey X pickup_value ...
Page 8: ...Administrator s Guide for SIP T2 Series T4 Series T5 Series IP Phones iv ...
Page 72: ...Administrator s Guide for SIP T2 Series T4 Series T5 Series IP Phones 52 ...
Page 258: ...Administrator s Guide for SIP T2 Series T4 Series T5 Series IP Phones 238 ...
Page 264: ...Administrator s Guide for SIP T2 Series T4 Series T5 Series IP Phones 244 ...
Page 378: ...Administrator s Guide for SIP T2 Series T4 Series T5 Series IP Phones 358 ...
