Good monring,
Thank-you belevedere and gjstroom. Without your help, I would still be pounding my head against the wall.
I was able to successfully convert my DT730 to SIP F/W to "NEC Std SIP 2.3.109.4" and use it to make both inbound and outbound calls using VoIP.ms. Tested -- works well. I still need to finesse the configuration (and documentation is sparse, so trial and error FTW) -- but it does work.
The biggest gotchas I encountered are:
1. Once flashed, the phone is exceedingly dumb. No web interface or simple configuration -- config, ringtones, updates, etc. --- everything needed is pushed out through a TFTP server on boot. You _need_ them all -- without it, the phone will sit and do nothing, as I learned the hard way
2. Unless you specify the DHCP option for the aforementioned TFTP server you will end up in a boot loop. I suspect my issue was the NEC phone was seeing my actual production phones TFTP server option and trying to use that -- which was causing my failures -- which leads perfectly into #3
3. There is a section under "ADMIN" you can go into and specify the source of the configuration. By default, it is set to DHCP. To work around my issue, I needed to change this to "Static" and manually tell it the IP address of the appropriate server
I hope this helps someone in the future.
Cheers
