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Configuring SRTP for SIP calls
Network requirements
Two routers Router A and Router B work as SIP UAs. It is required that SIP calls use the SRTP
protocol to protect call conversations.
Figure 680 Network diagram
Configuration procedure
1. Configure basic voice calls, see "Configure basic voice calls: configure a local number and the
call route to Router B."
2. Specify SRTP as the media flow protocol for SIP calls:
# Specify SRTP as the media flow protocol for SIP calls on Router A and Router B.
Select Voice Management > Call Connection > SIP Connection from the navigation tree,
and click the Session Properties tab to access the media security configuration page as
shown in Figure 681.
Figure 681
Con
figuring media security
a. Select SRTP for Media Protocol.
b. Click Apply.
Verifying the configuration
SIP calls use the SRTP protocol to encrypt and authenticate media flows, and call conversations are
well protected.
Configuring TCP to carry outgoing SIP calls
Network requirements
Two routers Router A and Router B work as SIP UAs. It is required that SIP calls between the two
parties be carried over TCP.
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