8.11.2.2.5. Ring Transfer 
- At a device several Ring Transfer keys to several destinations can be configured.
- The switchover deactivates the acoustic signaling and the incoming calls are signaled by line LED.
- The Ring Transfer changes the RIOP parameter of the affected line at the source and destination terminal.
- A ring transfer button lights if the ring transfer to the destination is activated.
- An incoming call is signaled acoustically, if the participant doesn't have any activated ring transfer and "RIOP =YES" is configured for the called line.
- The RIOP parameter has an initial value which is configured by the AMO KCSU (yes or no).
- Only such lines can be transferred, which would be ringing before the transfer, and are existing on the destination.
Remarks:
- A ring transfer will activate, when no ring transfer chain is created. In chained cases "Not Possible" is seen on the display.
- For further activated Ring Transfer incoming calls can be accepted.
- No network wide function
Changing key layout (extend STD 126 and 127)
CHANGE-TAPRO:STD=126,DIGTYP=OPTIT19,KY09=RNGXFERL, KY14=RNGXFERL; CHANGE-TAPRO:STNO=7210&7211,STD=126; CHANGE-TAPRO:STD=127,DIGTYP=OPTIT19,KY11=RNGXFERL, KY16=RNGXFERL; CHANGE-TAPRO:STNO=7212,STD=127;
Add additional authorization
CHANGE-SDAT:STNO=7210,TYPE=ATTRIBUT,AATTR=RNGXFERL; CHANGE-SDAT:STNO=7211,TYPE=ATTRIBUT,AATTR=RNGXFERL; CHANGE-SDAT:STNO=7212,TYPE=ATTRIBUT,AATTR=RNGXFERL;
Add Ringer transfer for the subscriber
ADD-ZIELN:STNO=7210,TYPE=RNGXFERL,KYNO=05,STNORXFR=7212, RXFRFCT=SRC; ADD-ZIELN:STNO=7212,TYPE=RNGXFERL,KYNO=09,STNORXFR=7210, RXFRFCT=DEST; ADD-ZIELN:STNO=7211,TYPE=RNGXFERL,KYNO=05,STNORXFR=7212, RXFRFCT=SRC; ADD-ZIELN:STNO=7212,TYPE=RNGXFERL,KYNO=09,STNORXFR=7211, RXFRFCT=DEST;
Key layout after generating this step
