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PT/SLT/PS/SIP Extn.
Off-hook.
Press MESSAGE or enter
PT/SLT/PS/SIP Extn.
7
Off-hook.
Enter
70.
MESSAGE
OR
7
0
2
70 and then 2.
0
0
Enter 0.
Talk.
your
extension no.
C.Tone
Dial your
On-hook.
extension number.