Snom HD100 - Keep Alive

SIP Phone Configuration Guide
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Setting
Description
Fixed
Enable fixed jitter buffer mode.
Fixed Delay (ms)
If Fixed is selected, enter the fixed jitter delay.
Adaptive
Enable adaptive jitter buffer mode.
Normal Delay (ms)
If Adaptive is selected, enter the normal or “target” delay.
Minimum Delay (ms)
Enter the minimum delay.
Maximum Delay (ms)
Enter the maximum delay. This time, in milliseconds, must be at least twice
the minimum delay.
3.2.1.17 Keep Alive
Setting
Description
Enable Keep Alive
Enable SIP keep alive in service of NAT traversal and as a heartbeat mechanism
to audit the SIP server health status. Once enabled, OPTIONS traffic should be
sent whenever the account is registered. OPTIONS traffic will occur
periodically according to the keep-alive interval.
Keep Alive interval
(sec)
Set the interval at which the OPTIONS for the keep-alive mechanism are sent.
Ignore Keep Alive
Failure
Enable the phone to ignore keep-alive failure, if the failure can trigger account
re-registration and re-subscription (and active calls are dropped).