回复：fitwxc 大侠也不回帖，只好请教egame...

add your SG# in GV

your phone
your phone -> SPA1001 ATA (set GV # as the caller ID) -> domestic/international out going calls are 1.9 cent per minute

Callers will always see your GV#, and the SG # is hidden to them.

Better to remove voice mail/call forwarding from SG.

Disable the "call presentation" in GV.

You can also call international numbers in GV (2 cent per min).