SIP trunkng replaces older PSTN and ISDN phone lines and uses the Internet to transmit voice data. Key benefits of SIP Trunking are:
- Lower cost compared to older PSTN and ISDN connections;
- Ability to easily scale up or down with the number of channels or simultaneous calls required;
- It is also easy to relocate as you could use your SIP Trunk anywhere you can get access to the Internet;
- SIP Trunk can be configured to encrypt all voice data before transmission and allow for HD voice codes with significantly better voice quality to be enabled.