Configuring the ip phones – Aastra Telecom SIP 480I User Manual
Page 111
Advanced Network Settings
41-001129-00 Rev 09, Release 1.4.1
4-55
Configuring the IP Phones
Configuring the IP Phones
.
Aastra Web UI
Step Action
1
Click on Advanced Settings->Global SIP->RTP Settings.
2
Enter an RTP Port Base in the RTP Port field. Default is 3000.
3
Enable the "Basic Codecs (G.711 u-Law, G.711 a-Law, G.729)" field by checking the check box.
(Disable this field by unchecking the box). Enabling this parameter allows the IP phone to use the
basic Codecs when sending/receiving RTP packets.
4
Enable the "Force RFC2833 Out-of-Band DTMF" field by checking the check box. (Disable this field
by unchecking the box). Enabling this parameter forces the IP phone to use out-of-band DTMF
according to RFC2833.
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