A SIP trunk (Session Initiation Protocol trunk) is a modern communication solution that enables businesses to make and receive phone calls over the internet instead of traditional telephone lines. By using VoIP (Voice over Internet Protocol), a SIP trunk connects an organization’s private branch exchange (PBX) to the public switched telephone network (PSTN) through the internet. This allows seamless voice, video, and messaging services while reducing dependency on costly physical phone lines.
For businesses, a SIP trunk offers significant advantages, including cost savings, scalability, and flexibility. Companies can add or remove channels easily without installing additional hardware, making it ideal for growing organizations. SIP trunking also supports unified communications, enabling integration of voice, video conferencing, instant messaging, and collaboration tools on a single platform.
At Tata Communications Limited, SIP trunking services are designed to deliver reliable, secure, and high-quality voice communication across global networks. With advanced features like disaster recovery, centralized call management, and geographic flexibility, Tata Communications ensures that enterprises benefit from a robust communication infrastructure. By adopting SIP trunk solutions, businesses can modernize their telephony systems, improve collaboration, and drive efficiency while reducing overall communication costs.