User`s manual

Version 5.4 157 May 2008
SIP User's Manual 3. Web-Based Management
Parameter Description
Proxy Keep Alive Time
[ProxyKeepAliveTime]
Defines the Proxy keep-alive time interval (in seconds) between Keep-Alive
messages. This parameter is configured per Proxy Set.
The valid range is 5 to 2,000,000. The default value is 60.
Note: This parameter is applicable only if the parameter
EnableProxyKeepAlive is set to 1 (OPTIONS). When the parameter
EnableProxyKeepAlive is set to 2 (REGISTER), the time interval between
Keep-Alive messages is determined by the parameter RegistrationTime.
Is Proxy Hot-Swap
[IsProxyHotSwap]
Enables the Proxy Hot-Swap redundancy mode per Proxy Set.
 [0] No = Disabled (default).
 [1] Yes = Proxy Hot-Swap mode is enabled.
If Proxy Hot-Swap is enabled, the SIP INVITE/REGISTER message is
initially sent to the first Proxy/Registrar server. If there is no response from
the first Proxy/Registrar server after a specific number of retransmissions
(configured by the parameter HotSwapRtx), the INVITE/REGISTER
message is resent to the next redundant Proxy/Registrar server.
3.4.5.1.4 Coders
The 'Coders' page allows you to configure up to five coders (and their attributes) for the
device. The first coder in the list is the highest priority coder and is used by the device
whenever possible. If the far-end device cannot use the first coder, the device attempts to
use the next coder in the list, and so forth.
Notes:
• The device always uses the packetization time requested by the remote
side for sending RTP packets.
• For an explanation on V.152 support (and implementation of T.38 and
VBD coders), refer to ''Supporting V.152 Implementation'' on page 405.
• You can also configure the Coders table using the ini file table parameter
CoderName (refer to ''SIP Configuration Parameters'' on page 323).