Hello friends - I need some "specific use" scenarios to justify the expense of a VG-202 gateway over an ATA-187 when supporting analog devices. I've been through the datasheets (which don't differ much, detail-wise - one supports SIP-only), and colleagues, which expressed a concern over the ATA's ability to support advanced faxing protocols (again, not in the datasheets).
The VG-202 is more than 2x the list price of the ATA-187. I'll be presenting soon to the customer, and need to understand the specific reasons why the VG would be required. Again, I need a few specific case examples where the VG-202 would do the job, and the ATA-187 would NOT.
OK, I'll bite (again)
The only reason you'd use a VG202 over an ATA is administration.
VGs run IOS, so are nice and easy to administer for your average Cisco engineer. IOS also makes troubleshooting easier too.
The ATAs, *sigh* aren't so administrator friendly.