problem with dialing HAI 70A00-2

Hello , help me to solve the problem - I need this sequence number **_ Pause _ phone number . What I write , so after ** there was a pause of 2-3 seconds ? I have the Omni LTe . Thank you .

I copied this from the help contents in PCA.
 
When entering a phone number, you can cause the system to pause for two seconds between digits of the number by entering a ' T ' in the number. Multiple Ts for longer pauses are allowed. You can also enter asterisks ( * ) or pound ( # ) keys for symbols to get through some types of telephone or pocket beeper/pager systems.
 
To prevent a call waiting line from interfering with the dial out, you may use the call waiting cancel sequence at the beginning of the number. The call waiting sequence is typically ' * 7 0 T ' (T = pause); however this may vary depending on your region. 
 
If you wish to remove a phone number for a particular dial out number, replace the phone number with a solitary hyphen ( - ).