Some of the strengths/weaknesses we see for Panasonic vs. FreePBX
Panasonic Strengths
• Dedicated line keys for POTS lines
• Low price, KSU + 5 phones & vmail can be installed for ~ $3000 CAD
• Free software upgrades (must rely on vendor for installation though)
• Good wireless phone integration, proprietary DECT cell stations
• Phones integrate well with the PBX, button programming, etc.
• Easy to define different ring tones for different lines or DNs
• Easy to setup Msg Waiting button for a different mailbox
Panasonic Weaknesses
• Poor documentation for installers, poor support for installers
• Phone models change rapidly, new phones don't work with old software
• Poor flexibility when dealing with ring groups
• Tough to setup 2 auto attendants for 2 different analog lines
• Cumbersome to do follow-me
• IP phones cannot be configured via web page, don't appear to have DHCP options for defining PBX IP
• Tough to troubleshoot SIP trunk issues - there's nothing that compares to asterisk CLI "sip set debug on"
• Most phones require paper labels, button layout is confusing on the 5XX models
• Backups cannot be automated
This is what comes to mind so far!