SIP Subscription Timers Parameters

Use the parameters in the following table to configure when a SIP subscription expires and when expirations overlap.

Table 1. SIP Subscription Timers

Template

Parameter

Permitted Values

Change Causes Restart or Reboot

sip-interop.cfg

voIpProt.server.x.subscribe.expires

The phone's requested subscription period in seconds after which the phone attempts to resubscribe at the beginning of the overlap period.

3600 - (default)

10 - 2147483647

No

sip-interop.cfg

voIpProt.server.x.subscribe.expires.overlap

The number of seconds before the expiration time returned by server x after which the phone attempts to resubscribe. If the server value is less than the configured overlap value, the phone tries to resubscribe at half the expiration time returned by the server.

60 - (default)

5 - 65535 seconds

No

reg-advanced.cfg

reg.x.server.y.subscribe.expires

The phone's requested subscription period in seconds after which the phone attempts to resubscribe at the beginning of the overlap period.

3600 seconds - (default)

10 - 2147483647 (seconds)

You can use this parameter in conjunction with reg.x.server.y.subscribe.expires.overlap .

No

reg-advanced.cfg

reg.x.server.y.subscribe.expires.overlap

The number of seconds before the expiration time returned by server x after which the phone attempts to resubscribe. If the server value is less than the configured overlap value, the phone tries to resubscribe at half the expiration time returned by the server.

60 seconds (default)

5 - 65535 seconds

No