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TLS-SRTP combinations
TLS protects control signaling, and SRTP encrypts and authenticates voice media flows. You can use them
separately or together. The following table shows four combinations of TLS and SRTP.
Table 239
TLS-SRTP combinations
TLS SRTP Description
On On
Signaling packets are secured. Personal information is protected.
Media packets are secured. Call conversations are protected.
Recommended.
Off On
Signaling packets are not secured. Personal information is not protected.
Media packets are secured. Call conversations are protected.
On Off
Signaling packets are secured. Personal information is protected.
Media packets are not secured. Call conversations are not protected.
Off Off
Signaling packets are not secured. Personal information is not protected.
Media packets are not secured. Call conversations are not protected.
Support for SIP extensions
•
Strict SIP routing is supported. In a complicated network environment where a request from SIP UAC
to SIP UAS needs to pass through multiple proxy servers, SIP uses the Route header field and the
Record-Route header field to make sure that requests in the dialog can be routed through these
proxy servers.
•
The new update method for SIP defined in RFC 3311 is supported. It is mainly used to update
parameters of a session, such as switching codecs, switching the voice to the media server, and
mute operation before the session is established, but has no impact on normal call procedures.
Summary of Contents for MSR SERIES
Page 17: ...xv Documents 835 Websites 835 Conventions 836 Index 838 ...
Page 20: ...3 Figure 3 Initial page of the Web interface ...
Page 42: ...25 Figure 13 Firefox Web browser setting ...
Page 59: ...42 Figure 27 Checking the basic service configuration ...
Page 73: ...56 Figure 35 Sample interface statistics ...
Page 156: ...139 Figure 139 Rebooting the 3G modem ...
Page 168: ...151 Figure 152 Configuring Web server 2 ...
Page 174: ...157 Figure 158 Configure the URL filtering function ...
Page 242: ...225 Figure 233 Enabling the DHCP client on interface Ethernet 0 1 ...
Page 247: ...230 Figure 236 The page for configuring an advanced IPv4 ACL ...
Page 255: ...238 Figure 241 Advanced limit setting ...
Page 298: ...281 e Click Apply 2 Configure Router B in the same way Router A is configured ...
Page 400: ...383 Figure 387 Verifying the configuration ...
Page 405: ...388 ...
Page 523: ...506 Figure 530 Ping configuration page ...
Page 775: ...758 Figure 785 Configuring a jump node ...