1. Steps to allow number display (on per call basis) when calling to Mobile / Fixed Line number

1.1 Press *31#
1.2 Enter phone number
1.3 Press SEND / CALL
1.4 To repeat the above steps for every call

2. Steps to allow number display (on call per basis) when paging

2.1 Press *31#
2.2 Enter pager number
2.3 Press SEND / CALL
2.4 Press ** after hearing the paging tone
2.5 To repeat the above steps for every paging call