Can't get second dial tone
I have a ipo 8.1.67. I can get the secondary dial tone use only one short code in the sytem shortcode or user short code . such as 9N/N/50main. But When I use two short code , such as 9N/N/50main 90N/0N/50main ,then I can't get the secondrary dial tone . Does anyboby have the same problem ?
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