Aastra Telecom 57I CT, 55I, 53I manual Payload, Silsupp

Appendix A

IP Phone Administrator Guide

Operational, Basic, and Advanced Parameters

Parameter –	Aastra Web UI	Advanced Settings->Global SIP->RTP Settings
sip out-of-band dtmf	Configuration Files	aastra.cfg, <mac>.cfg
Force RFC2833 Out-of-Band
DTMF
(in Web UI)
Description	Enables or disables out-of-band DTMF. Enabling this parameter forces
	the IP phone to use out-of-band DTMF according to RFC2833.
Format	Boolean
Default Value	1
Range	0 - Disable
	1 - Enable
Example	sip out-of-band dtmf: 0
Parameter –	Aastra Web UI	Advanced Settings->Global SIP->RTP Settings
sip customized codec	Configuration Files	aastra.cfg, <mac>.cfg
Customized Codec Preference
List
(in Web UI)
Description	Specifies a customized Codec preference list which allows you to use
	the preferred Codecs for this IP phone.
Format	Comma-separated list of semicolon-separated values
Default Value	Not Applicable
Range	Valid values for the syntax are:
	payload	0 for G.711 m-Law
		8 for G.711 a-Law
		18 for G.729a
	ptime (in milliseconds)	5, 10, 15, 20........90
	silsupp	on, off
Example	sip customized codec:
	payload=8;ptime=10;silsupp=on,payload=0;ptime=10;
	silsupp=off

A-78 41-001160-00, Release 2.1, Rev 04