Administrator’s Guide for SIP-T2xP and SIP-T19P IP Phones 
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3.  Click on Advanced. 
4.  Select the desired value from the pull-down list of DTMF Type. 
5.  If SIP INFO or AUTO or SIP INFO is selected, select the desired value from the 
pull-down list of DTMF Info Type. 
6.  Enter the desired value in the DTMF Payload Type (96~127) field. 
 
7.  Click Confirm to accept the change. 
To configure the number of times to send the end RTP Event packet via web user 
interface: 
1.  Click on Features->General Information.