Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones 
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Details of the Configuration Parameter: 
Description:   
Enables or disables the 100 reliable retransmission feature for account X. 
0-Disabled 
1-Enabled 
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G) 
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S) 
X ranges from 1 to 6 (for SIP-T41P/T41S/T27P/T27G) 
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G) 
X ranges from 1 to 2 (for SIP-T21(P) E2) 
X is equal to 1 (for SIP-T19(P) E2/CP860/CP920) 
Web User Interface: 
Account->Advanced->Retransmission 
Phone User Interface: 
None 
To configure 100 reliable retransmission via web user interface: 
1.  Click on Account->Advanced. 
2.  Select the desired account from the pull-down list of Account. 
3.  Select the desired value from the pull-down list of Retransmission. 
 
4.  Click Confirm to accept the change.