Copied template from known working config.

Removed SIP from the general SIP configuration and moved it to the phone
configuration to support alternate SIP servers.

Removed NTP from the general SIP configuration and moved it to the phone
configuration to support alternate NTP servers.
Removed shorttags to work with FreePBX OOTB. Added column checking for
the phoneExt CSV file. Added AltSIP and AltNTP to good columns.
Added NTP and SIP to phone specific configuration.

Added support for AltSIP and AltNTP servers.
Added AltSIP and AltNTP