Aastra Telecom 41-001343-02 manual Rport Setting, Local SIP UDP/TCP Port Setting

	Operational, Basic, and Advanced Parameters
Rport Setting
Parameter –	Configuration Files
sip rport	aastra.cfg, <model>.cfg, <mac>.cfg
Description	Allows you to enable (1) or disable (0) the use of Rport on the IP phone.
	“Rport” in RFC 3581, allows a client to request that the server send the response back
	to the source IP address and the port from which the request came.
	Note:
	Configuring the Rport parameter is recommended for clients behind a Network
	Address Translation (NAT) or firewall.
Format	Boolean
Default Value	0
Range	0 (disable)
	1 (enable)
Example	sip rport: 1
Local SIP UDP/TCP Port Setting
Parameter –	Configuration Files
sip local port	aastra.cfg, <model>.cfg, <mac>.cfg
Description	Specifies the local source port (UDP/TCP) from which the phone sends SIP messages.
Format	Numeric
Default Value	5060
Range	Greater than 1024 and less than 65535

Notes:

•It is recommended that you avoid the conflict RTP port range in case of a UDP trans- port.

•By default, the IP phones use symmetric UDP signaling for outgoing UDP SIP mes- sages. When symmetric UDP is enabled, the IP phone generates and listens for UDP messages using port 5060.If symmetric UDP signaling is disabled, the phone sends from random ports but it listens on the configured SIP local port.

Example sip local port: 5060

41-001343-02 REV04 – 05.2014 A-26