PBXNSIP Review

The pbxnsip PBX is the perfect product for the small to medium-size enterprise. It offers all popular features of the PBX and maximizes the interoperability with existing vendors of SIP equipment. It works with most ITSP vendors that offer SIP services. pbxnsip customers enjoy: • The look & feel of a traditional PBX, • Connectivity to an ITSP or to a customer premises PSTN gateway, • The ability to run infrastructure solely on IP, • Vendor independence, • Built-in security using the sips, srtp, and sdes standards, • Built-in SBC for solving NAT problems, • Call recording and paging functionality, • Trunking to gateways and service providers, The PBX offers two ways to connect to external devices. First, you may register SIP user agents (UA), for example hard or soft phones, FAX or other SIPcompliant devices like conferences systems. Second, you may connect to the outside world via trunks. The PBX supports several kinds of trunks. You may connect a regular SIP PSTN gateway to the PBX and terminate your calls to the PSTN through this gateway. The gateway does not need to support advanced features like transfer or dialog stage. See the list of PSTN gateways that we were able to test already.