Issue 2.0
8-28 IP Multiline Station (SIP)
Conditions
Encryption is not supported on DT800/DT700 series phones that are connected
via NAPT.
Encryption is not supported on DT800/DT700 series phones that are registered
to a secondary NetLink system.
DT800/DT700 series phones that are registered to a primary NetLink can fail
over to a secondary system regardless of encryption settings.
If the encryption feature is enabled in terminal programming but not licensed,
the terminal display will no longer display "Invalid Info", however the encryption
feature will not work until licensed.
15.2 General IP Configuration
The voice quality of VoIP depends on variables such as available bandwidth,
network latency, and quality of service initiatives (QOS). These variables are
controlled by the network and Internet service providers. Because these variables
are not in NEC control, NEC cannot guarantee the performance of the users IP
based voice solution. NEC recommends connecting the VoIP equipment through
a local area network using private IP addresses.
DT800/DT700
Encryption On
DT800/DT700
Encryption Off
N
S = Supported N = Not Supported
Figure 8-15 DT800/DT700 Encryption
Source Destination SRTP Comment
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