What are the current internet faxing services that offer an inbound and outbound fax service? The ones I'm aware of (other than from j2) are: SRFax, Fax1 and Faxage. Are there others I'm missing? Among these, are any better quality and/or price wise?
Alternatively, how would VoIP providers offering built-in faxing compare to the above services, reliability and/or price wise? Which offer inbound faxing - and do any of them offer outbound as well?
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