i need help guys i am trying to programm nec sl1000 with 3cx softphone on my samsung phone. no success.
can anyone send me configuration or i can use another softphone.
thank u all.

why not use the NEC Umobility app on the smartphone. It's free but you need to make sure you have a license on the system for it to work.

From memory the SL1100 needs a password in PRG 15.05.16

Have a look at this TIB and see if it helps..
https://dl.dropboxusercontent.com/u...rd%20party%20SIP%20ext%20on%20SL1100.pdf