IP telephony has become quite popular among Internet users in recent years. One of the services based on this technology is DID number. Another name is SIP, along with a definition of VoIP. The essence is the same – it is a virtual phone, which does not require physical carriers, such as additional equipment or SIM cards.
What Is a DID Number?
It’s a service that lets you stay in touch regardless of location. There are virtual DID numbers for call, which help forward a call to any convenient device for the subscriber – mobile or landline phone, SIP, etc.
How Does the Number Work?
As it was mentioned before, such a service works based on IP telephony. This means that communication is not through traditional wired and wireless telephone networks but through the Internet.
For calls, any phone or gadget with a SIP softphone installed is suitable. For SMS, you will need either a phone, where they will be stored as ordinary messages, or e-mail, where a special archive is created in the box, adjusted so that any message or correspondence can be found literally in a couple of clicks.
What Services Are Provided Through a DID Number?
A DID number can be used for different purposes, depending on how it is used. We distinguish between the following types:
- Multi-channel phone. Receive several calls at a time. This way, you won’t miss a single potential customer.
- Virtual PBX. With virtual PBX, you can manage your calls and forward them to the device you want.
- SMS. Sending and receiving messages wherever you are. In addition, all incoming messages can be sent to your mail.
- FAX. All faxes from a virtual fax number are sent to your email. You can review them at your convenience. They will remain in your inbox until you delete them yourself.
The main purpose of a DID is to provide inexpensive communication of high quality and reliability. The very technology used to make calls ensured transmission speed and signal purity.
