Aastra Telecom SISIP 57I CT - Manual (Page 361)

Operational, Basic, and Advanced Parameters
41-001160-00, Rev 01 Release 2.0 A-19
Configuration Parameters
Appendix A
Parameter –
sip nortel nat timer
Nortel NAT Timer
(in Web UI)
Aastra Web UI Advanced Settings->Network
Configuration Files aastra.cfg, <mac>.cfg
Description The interval, in seconds, that the phone sends SIP ping requests to the
Nortel proxy.
Format Integer
Default Value 30
Range 0 to 2147483647
Example sip nortel nat timer: 60