Advanced Operational Parameters
41-001343-02 REV04 – 05.2014 A-212
Ignore Out of Order SIP Requests
Optional “Allow” and “Allow-Event” Headers
P-Asserted Identity (PAI)
Parameter–
sip accept out of order requests
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description Enables a workaround for non-compliant SIP devices (for example, Asterisk) which do
not increment the CSeq numbers in SIP requests sent to the phone.
Format Boolean
Default Value 0 (disabled)
Range 0 (disabled)
1 (enabled)
Example sip accept out of order requests: 1
Parameter –
sip notify opt headers
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description Enables and disables whether or not the “Allow” and Allow-Events” optional headers are
included in the SIP NOTIFY messages sent from the phone to the server.
Format Boolean
Default Value 1
Range 0 (disabled - optional headers are removed from the SIP NOTIFY message)
1 (enabled - no change; optional headers are included in SIP NOTIFY message)
Example sip notify opt headers: 0
Parameter –
sip pai
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description Enables or disables whether the SIP PAI displays to the IP phone.
Format Boolean
Default Value 1
Range 0 (disabled)
1 (enabled)
Example sip pai: 0
