If you want to set-up your own office phone system then you can use open-source PBX softwares (Asterisk, FreeSWITCH, OpenPBX).
You may want to try open-source PBX phone systems.
All business phone system providers are suitable providers as long as they fulfill the telecommunication requirements needed by your business.
I don't need to try the service of different virtual PBX provider and share it with you. Instead I suggest to you that you go online and see a site that enables you to easily compare service providers by features, plans, services, prices and benefits.
RingCentral office phone systems and other providers like VirtualPBX have 30 days risk-free trials or money back guaranteed of their service.
I think RingCentral offers free trial period with no hidden charge.
You can experience RingCentral yourself by acquiring their free trial of 30 days.
Any virtual PBX phone system provider offering the following features on their phone system is suitable: auto-attendant call blocking call forwarding call screening call transfer call id click to call custom greeing dial by name fax on demand internet fax message alerts music on hold online management voicemail free trial or money back guaranteed.
You can try it yourself because RingCentral offers a free trial period for their telecommunication service like virtual PBX.
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