Endpoint Manager + GXP-2010

If you want to program every phone the same, you can:

vim /tftpboot/Grandstream_GXP2000_Default.txt

add the lines:

# Multi Purpose Key 8
P353 = 1
P354 = 0
P355 =
P356 =

# Multi Purpose Key 9
P357 = 1
P358 = 0
P359 =
P360 =

And so on. The format is:

Account Number
BLF or Speed Dial
Name
Number

Then you'll have to re-generate the config file for each phone using the end point manager.