I bought a cloud instance of FreePBX, I have sip trunking to voip.ms. I have firewall setup for my IP and customer IP for management. I have 10 grandstream wave softphone apps on cell phones spread out across a number of home office users. I use a long password for Sip authentication (not the suggested one but a 15 character letter, number and characters). Calls are sent to a ring group and then transferred. We have voicemail to email setup using gmail. We use time condition and time groups to route calls after hours to a mailbox.
Just looking for any suggestions for improvements. The GS Wave shuts off on a number of users. They have to remember to start it up. One user will not function on wifi, only 4glte.
25 years of Nortel, Mitel, Avaya and NEC. Thus far I am impressed.