1. Off-hook dial #787 1967590 to enter the programming (there will always be a beep).

2. Setting the extension number is item 29 of the programming, so you need to enter 29 after hearing the beep just now, and then you will hear the beep, pay attention to only one beep.

3. Enter the port number first, then press *, then enter the extension number, and then press * to go to the next port (set as before, also enter the port number, then press *, and then enter the extension number). After setting eight ports, press # to save the settings just now.

When setting the number, it must be a new number, otherwise the setting is invalid. If the setting is invalid, nine times out of ten, it is caused by duplicate numbers, so either delete the old number and set it again. I may not know exactly. Ok, let me give you an example: I want to set the port number 33 to 80 10 now, but this number is assumed to have been set on the port 16 before. Now, after I set up my mobile phone according to the above steps, I can make a phone call, but people can't get in. In fact, because the number was not set successfully, I had to delete the original number of port 16 (assuming it was not used). The steps are as follows: # 7871967590-29-016-