Option
Description
Option
Description
Specific Server Type
Use this option to set the
line to collaborate with a
specific server type.
Enable DNS SRV
Use this check box to
enable using DNS SRV,
which resolves the
FQDN in the proxy
server to a service list.
Registration Expiration
Use this option to set the
SIP expiration interval
Keep Alive Type
Use this option to set the
line to use dummy UDP
or SIP OPTION packets
to keep the NAT pinhole
opened.
Use VPN
Use this check box to
enable using VPN
restrict routing.
Keep Alive Interval
Use this option to set the
keep alive packet
transmission interval.
Use STUN
Use this check box to
enable using STUN for
NAT traversal.
Sync Clock Time
Use this check box to
enable time
synchronization with the
server.
Convert URI
Use this check box to
enable converting non-
digit and alphabet
characters to %hh hex
code.
Enable Session Timer
Use this check box to
enable call ending by
session timer
refreshment. The call
session is ended if there
is no new session timer
event update received
after the timeout period.
DTMF Type
Use this option to set the
DTMF type to be used
for the line.
Session Timeout
Use this option to set the
session timer timeout
period.
DTMF SIP INFO Mode
Use this option to set the
SIP INFO mode to send
‘*’ and ‘#’ or ‘10’ and ‘11’.
Enable Rport
Use this check box to
enable adding Rport in
SIP headers.
Transportation
Protocol
Use this option to set the
line to use TCP or UDP
for SIP transmission.
Enable PRACK
Use this check box to
enable supporting
PRACK SIP messages.
SIP Version
Use this option to set the
SIP version.
Keep Authentication
Use this check box to
enable keeping the
authentication
parameters from before.
Caller ID Header
Use this option to set the
caller ID header.
Auto TCP
Use this check box to
enable using the TCP
protocol to guarantee
usability of transport for
SIP messages above
1,500 bytes.
Table continues…
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October 2019
Installing and Administering the Avaya H239 and H249 Phones
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