Prior to the release of the IP Office 500, there were two options in the IP Office 406 V2 and the IP Office Small Office Edition (SOE).
The IP Office 500, looks to bridge the gap between the SOE and the 406 V2. The SEO is fixed configuration, i.e. the format you buy is what you are stuck with, whereas with the IP Office 500 & 406 V2 you have a choice of modules, either externally attached or internally.
The IP Office 500 however is far better suited to the smaller market, particularly price wise. However, there are many options around SIP & VoIP that are very affordable and easy to implement in the IP Office 500.
For further information or consultancy please contact us www.alfred-ashley.co.uk