SIP Trunking Providers - Compare Best SIP VoIP Phone Services
"SIP" stand for Session Initiation Protocol. "Trunking" refers to a large number of telephone users sharing a smaller number of communication paths. With SIP, all calls are local calls. SIP Trunking calling offers free calling to other SIP networks, and very inexpensive calling overall. SIP Trunks combine your voice, video and data networks into a single line. With the session initiation protocol, you can keep your real time traffic on the internet, and off the PSTN as much as possible. SIP can take your business to the next level. Compare top SIP Trunking Providers below.