10.2.10.3. Configuration 
General activation of the SPS feature:
CHANGE-ZANDE:TYPE=ALLDATA,SPS=YES;
For more information on the configuration please refer to Section 2.9.2,
“How is Payload Survivability Configured?”.
Configuration Example
- Describe how source group (1) is reached with alternate routing table
ADD-APRT:TYPE=ALTROUT,SRCGRP=1,ALRTYPE=ALR,ALTRTNR=00897229000, ACCODE=9000,ARTCNR=1000,ARTCNRNG=30;
- Describe how source group (19) is reached with alternate routing table
ADD-APRT:TYPE=ALTROUT,SRCGRP=19,ALRTYPE=ALR,ALTRTNR=00897229000, ACCODE=9000,ARTCNR=1000,ARTCNRNG=30;
- Define code for incoming alternate route
ADD-WABE:CD=9000,DAR=INCALTRT;
- Source group needs to be configured in AMO TDCSU for all involved trunks
CHANGE-TDCSU:PEN=x-x-x-x,SRCGRP=1;
CHANGE-TDCSU:PEN=x-x-x-x,SRCGRP=19;
- AMO TWABE will be used for direct call to Xpression access numbers
ADD-TWABE:STNO=64,LEN=5;
-
..where 64 (TIE code to XPR, max. 3), 5 is total length of the number (TIE code + length of the direct access number)It should be noted that TWABE has no DPLN groups. The usage of block dial feature might be used as alternative solution to AMO TWABE.
- Configuring code for force alternate route
ADD-WABE:xxx,,,FRCALTRT,N,,,,,,,,;
- Configuring station autorization
-
Stn COSSU must have autorization TTT (Transfer Trunk to Trunk) to allow transfer over SPSCHANGE-COSSU:TYPE=COS,COS=xx,AVCE=TTT;
IMPORTANT:
The carrier must deactivate checking of the Calling Party Number (CLIPNOSCREEN).