To stay competitive, small businesses need to take advantage of technology for several reasons. Utilizing technology can reduce communication costs, make customer service more efficient, speed up communications and keep day-to-day business running smoothly. In addition, over SIP trunking, there is the opportunity for converged voice, video and data. This is done through something call peer-to-peer SIP communications (P2PSIP.) P2PSIP registers, looks up contacts and shares information. It handles the constant flux of information online without dropping or losing any important information.

P2PSIP also simplifies telephone communication. P2PSIP can condense or minimize the functions needed to initiate, connect and end voice calls. The information needed to make a phone call are embedded in the endpoints, rather than needing additional mediation. Essentially, a user can plug in an IP phone into the LAN (local area network,) and the phone configures itself within a few minutes, allowing for voice mail, conferencing and auto attendant.

SIP can also improve enterprise communication as well by facilitating communication between businesses and their contacts, who may include clients, partners, and suppliers. SIP can remove the need for several devices, instead it is an interface which allows for multiple endpoints, thus connecting enterprise platforms with application servers. Cost and efficiency are reduced when enterprises are stuck using circuit-switched hand-off. This harms qualities of transmission, makes contact more complicated and costs more. However, by building a framework of SIP communications, communication within and between multiple enterprises reduces the number of gateways and devices need to run a large enterprise.