I'm getting ready to contract out the installation of a VOIP phone system in our offices. Initially we need 10 units, but will need to expand up to 50 within the next 2 years.
On average, what should I expect the initial install and future upgrades to cost? Ideally, I'd like to break this down to a per unit cost, which I know will be higher with fewer phones and lowers as the cost is deferred across more phones.
Thanks
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