Aastra Telecom 41-001343-02 Symmetric UDP Signaling Setting, Symmetric TLS Signaling Setting

		Advanced Operational Parameters
Symmetric UDP Signaling Setting
Parameter –	Configuration Files
sip symmetric udp signaling	aastra.cfg, <model>.cfg, <mac>.cfg
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 ran-
	dom port to send SIP UDP messages.
	Note:
	This parameter should be disabled according to M5T.
Format	Boolean
Default Value	1	(enabled)
Range	0	(disabled)
	1	(enabled)
Example	sip symmetric udp signaling: 0
Symmetric TLS Signaling Setting
Parameter –	Configuration Files
sips symmetric tls signaling	aastra.cfg, <model>.cfg, <mac>.cfg
Description	Allows you to enable or disable the phone to use port 5061 as the persistent TLS con-
	nection source port. The value “1” (default) enables the phone to use port 5061. The
	value “0” disables the phone from using port 5061 and allows the phone to choose a
	random persistent TLS connection source port from the TCP range (i.e. 49152...65535)
	regardless of whether the parameter “sip outbound support” is enabled or disabled.
Format	Boolean
Default Value	1	(enabled)
Range	0	(disabled)
	1	(enabled)
Example	sips symmetric tls signaling: 0
User-Agent Setting
Parameter –	Configuration Files
sip user-agent	aastra.cfg, <model>.cfg, <mac>.cfg
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

41-001343-02 REV04 – 05.2014 A-210