Hosted PBX requires no on-site equipment.
SIP Trunking connects to existing PBX hardware.
Costs include monthly VoIP service fees.
Costs vary based on usage and existing PBX equipment.
Easily scalable with just an internet connection.
Requires additional SIP trunks for scaling.
Managed by the PBX provider or service provider.
Requires internal IT staff for PBX management.
Offers full integration with VoIP phone systems.
Works best for businesses with on-premise PBX setups.