When using *67 with my BYOD, I always get a busy signal after dialing the destination number. For example, *67 XXX-XXX-XXXX <get busy signal>. Just to be clear -- it's not a reorder signal, it's a busy signal.

Also, if I enable "Block caller ID for all calls" with *30, then dial XXX-XXX-XXXX, I get a busy signal on all calls. If I disable "Block caller ID for all calls" with *31, calls complete normally.

My ATA is an SPA-2102, if that makes any difference.

I don't think that it's a dial plan issue because the problem occurs even when I enable caller ID blocking with *30.

Any ideas on what would be causing this problem?