Download our SIP Whitepaper
Please use the link on the right to download the STL SIP Whitepaper.
The easiest way to move to IP telephony is to replace traditional ISDN telephone lines with Session Initiation Protocol or SIP trunk lines. SIP based services offer a secure, totally reliable way to make high quality business telephone calls over a data connection. SIP trunks provide ultra-competitive call and rental rates combined with inherent disaster recovery and resilience benefits.
Traditional ISDN services are expensive, inflexible and will soon be unavailable when BT switches off the service in 2025. STL is able to provide you with significant cost savings on your line rental charges with SIP and in most cases calls to land lines and mobiles will be free of charge.