One more thing...
When you look at the Administrator's guide for the files that are required, you'll see the following listed:
sip.ld
sip.cfg
phone1.cfg
000000000000.cfg
000000000000-directory~.xml
SoundPointIP-dictionary.xml
SoundpointIPWelcome.wav

You will notice that the sip.cfg file does not exist. That is the config file you will edit or create. You can use a file like sip-basic.cfg, and either rename it or use the same name, and reference that in your 00000000000.cfg file.