First off, SIP stands for Session Initiation Protocol. It’s the protocol that allows users to send unified communications over the Internet and is the foundation of UCaaS services.
Replacing traditional telephone lines, SIP works with a business’s Private Branch Exchange (PBX) and allows the use of virtual phone lines that can dial phone numbers and make and receive phone calls over the Internet. It does so by converting analog voice audio into a digital signal that gets sent online.
SIP can create, manage, and terminate communication sessions between parties in an IP network. Those sessions can be either two-way or multi-way for a conference call.
Management teams are interested in SIP because it connects a PSTN network with on-site VoIP phone systems. This way, the cost of keeping legacy communication platforms is lower, and you get the chance to add in some modern features as well.
What Is a SIP Trunk Channel?
A channel is essentially any incoming or outgoing call. Every SIP trunk is capable of supporting multiple SIP channels. A business is capable of running on a single SIP trunk and scales its number of channels based on how many concurrent calls it expects to use.
What Does the SIP Architecture Support?
The features that SIP trunking enables are numerous and add to the appeal of working with a SIP trunking provider.
- 911 routing for legal compliance
- DoS protection for reliability
- Interoperability with cellular networks to enable call forwarding
- Usage reporting to measure performance
These are only a few examples of what some SIP trunking providers can offer. Get in touch with a few on your list to find out what else could be in store.