FXO Trunks or PRI solutions for small office of 15 or less users?What ISR and switch to use? CUE for Voicemail? how about faxing?
depends on how many simulatneous calls you want. If all 15 users need to talk at the same time, it would be better to get a PRI. Would suggest CISCO2801-V/K9 add in PVDM2-32, AIM-CUE, and VIC2-2FXS for fax lines.
1: What are the company's future growth plans?
2: Which of these alternatives has the better growth path for your company?
3: What are the HW costs for each of these services? The personnel costs for installing/maintaining?
3: What will the telephony service provider charge you for each of the alternatives, both now and as you grow?