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Appendix
SSI&TSI Dialing Rules
In the TETRA system, subscribers are distinguished
by different identities. Each subscriber is assigned
with a unique short subscriber identity (SSI), which
serves a part of the TETRA subscriber identity (TSI).
And TSI is generally composed in this way: Mobile
Country Code (MCC) + Mobile Network Code (MNC)
+ SSI. To initiate an individual call, please dial the SSI
or TSI in compliance with the rules below.
● SSI Dialing
Make sure there are not more than 8 digits.
● TSI Dialing
»
MNC+SSI:
1 ) I n p u t t h e M N C a s i t i s ;
2) SSI must be 8 digits long. Add 0 before the
first digit of SSI which is shorter than 8 digits.
For example, when MNC is 20 and SSI is 504,
you need to input 2000000504.
»
M C C + M N C + S S I :
1) MCC must contain 3 digits. Add 0 before the
first digit of MCC which is shorter than 3 digits;
2) MNC must contain 4 or 5 digits. When the
MNC is shorter than 4 digits, add 0 before its
first digit; when it is 5 digits long, use it directly;
3) SSI must be 8 digits long. Add 0 before the
first digit of SSI which is shorter than 8 digits.
For example, when MCC is 460, MNC
is 20 and SSI is 504, you need to input
460002000000504.
