The best way to organize high-quality telephone communication for large companies and business centers is to connect the office telephone exchange to a PABX (automatic telephone exchange) of the telecom operator via the digital E1 stream or SIP trunk and get a wide range of telephone services.
What is the difference between these connection options?
Connecting via E1 stream organizes voice communication, providing 30 simultaneous high-quality voice communication channels in one physical stream. This means that 30 subscribers can talk at the same time, while the number of phone numbers in the E1 stream is not limited.
The SIP trunk is a virtual communication channel between the operator's PABX and the office telephone exchange organized through a universal IP network without the need to use standard telephone lines. Thus, the company employees are no longer tied to one workplace (a wired phone) and can receive calls in every Internet-connected location.
SIP trunk connection is an ultimate solution that allows you to connect an unlimited number of phone numbers and use both analog telephones and IP phones and special software at the company workplaces.
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