I am researching the components and infrastructure that I need to install a new phone system in our office. We currently have *no* existing system or PBX.
The requirements would be as follows:
* Support 20 users currently
* Expandable to 50 users (hopefully within 5 years)
* Basic voicemail, caller ID, forwarding, etc.
* Preferably some integration with our Exchange 2007 server (e-mail notification of messages, etc)
And that is really it!
Of course I am drawn to Cisco because of the strength of their brand, but I wanted to get some advice from the professionals on the message board here.
My questions are:
If I am considering the Cisco Unified Communications 500 Series for Small Business line of products, what would I need to make a complete system?
Obviously I would need the actual VoIP platform device, but can someone explain to me how that would interface with the PSTN?
I am currently working under the assumption that I would need something called a SIP Trunk, is this true?
Would the cable dropped by the SIP provider simply plug into the platform and then the phones connect to it?
Do I need a PoE switch sitting between the phones and the Cisco 500 series platform device?
Can someone provide a brief high level overview of what a simple system in a pristine environment would look like?
Please forgive my ignorance on VoIP related issues!
I really appreciate you taking the time to review and respond to my questions.