We will use Octel email and will use Cisco DPA as a gateway to Octel voicemail system. We have about 2000 users, and do we have any standard voicemail user ratio 10:1, 20:1 or 30:1 etc, thus we can order the correct number of DPA for this? So if the ratio is 20:1, then we need 4 DPA.
Number of DPA = 2000 users / 20 (ratio) / 24 DPA ports is about 4 DPA devices.
Please advice. Thank you.
