Aastra Telecom 57I CT, 55I, 53I manual Symmetric UDP Signaling Setting, User-Agent Setting

IP Phone Administrator Guide Advanced Operational Parameters

Appendix A

Symmetric UDP Signaling Setting

Parameter –	Configuration Files aastra.cfg, <mac>.cfg
sip symmetric udp signaling
Description	Allows you to enable or disable the phone to use port 5060 to send SIP
	UDP messages. The value “1” (which is the default) enables the phone
	to use port 5060. The value “0” (zero) disables the phone from using
	port 5060 and allows the phone to choose a random port to send SIP
	UDP messages.
Format	Boolean
Default Value	1	(enabled)
Range	0	(disabled)
	1	(enabled)
Example	sip symmetric udp signaling: 0

User-Agent Setting

Parameter –	Configuration Files aastra.cfg, <mac>.cfg
sip user-agent
Description	Allows you to enable or disable the addition of the User-Agent and
	Server SIP headers in the SIP stack.
	The value of “0” prevents the UserAgent and Server SIP header from
	being added to the SIP stack. The value of “1” allows these headers to
	be added.
Format	Boolean
Default Value	1	(true)
Range	0	(false)
	1	(true)
Example	sip user-agent: 0

A-176 41-001160-00, Release 2.1, Rev 04