SIP represents the next generation of business phone systems and can even be overlaid directly on top of a company’s existing PBX, or private branch exchange, used to support traditional phone calls.
Source: The Ultimate Guide to SIP Phones
SIP represents the next generation of business phone systems and can even be overlaid directly on top of a company’s existing PBX, or private branch exchange, used to support traditional phone calls.
Source: The Ultimate Guide to SIP Phones