Aastra Telecom 41-001343-02 RTP Settings, Whitelist Proxy on, Message, XML SIP Notify Events on

		Administrator Level Options
Parameter in	Parameters in Configuration Files	Description
Aastra Web UI
Whitelist Proxy	sip whitelist	This parameter enables/disables the whitelist proxy feature, as follows:
		• Set to 0 to disable the feature.
		• Set to 1 to enable the feature. When this feature is enabled, an IP phone
		accepts call requests from a trusted proxy server only. The IP phone
		rejects any call requests from an untrusted proxy server.
		For more information about Whitelist Proxy see Chapter 6, the section,
		“Whitelist Proxy” on page 6-15.
XML SIP Notify	sip xml notify event	Enables or disables the phone to accept or reject an aastra-xml SIP NOTIFY
		message.
		Note:
		To ensure the SIP NOTIFY is coming from a trusted source, it is recom-
		mended that you enable the Whitelist feature (Whitelist Proxy parameter)
		on the IP phone. If enabled, and the phone receives a SIP NOTIFY from a
		server that is NOT on the whitelist (i.e. untrusted server), the phone rejects
		the message.
		For more information about XML SIP Notify see Chapter 6, the section,
		“XML SIP Notify Events” on page 5-256.

RTP Settings

You can configure the following RTP settings.

Parameter In	Parameter in	Parameters in Configuration	Description
IP Phone UI	Aastra Web UI	Files
RTP Port Base	RTP Port	sip rtp port	The RTP port is used for sending DTMF tones and for the audio
			stream. Your network administrator may close some ports for
			security reasons. You may want to use this parameter to send
			RTP data using a different port. Default is 3000.
			For more information, see Chapter 4, “Real-time Transport Pro-
			tocol (RTP) Settings” on page 4-74.
N/A	Force RFC2833 Out of	sip out-of-band dtmf	Enables or disables out-of-band DTMF. Enabling this parame-
	Band DTMF		ter forces the IP phone to use out-of-band DTMF according to
			RFC2833. Valid values are 0 (disabled) and 1 (enabled). Default
			is 1 (enabled).
			For more information, see Chapter 4, “Real-time Transport Pro-
			tocol (RTP) Settings” on page 4-74.
N/A	DTMF Method	sip dtmf method	Sets the dual-tone multi-frequency (DTMF) method to use on
		(global)	the IP phone on a global or per-line basis. Valid values are 0
	(Global and Per-Line)		(RTP), 1 (SIP INFO), or 2 (BOTH). Default is 0 (RTP).
		sip lineN dtmf method	For more information, see Chapter 4, “Real-time Transport Pro-
		(per-line)
			tocol (RTP) Settings” on page 4-74.
N/A	RTP Encryption	sip srtp mode	This parameter determines if SRTP is enabled on this IP phone,
		(global)	as follows:
	(Global and Per-Line)		• If set to 0, then disable SRTP.
		sip lineN srtp mode	• If set to 1 then SRTP calls are preferred.
		(per-line)	• If set to 2, then SRTP calls only are generated/accepted.
			For more information, see Chapter 4, “Real-time Transport Pro-
			tocol (RTP) Settings” on page 4-74.

41-001343-02 REV04 – 05.2014 3-42