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Telecom Business Review | Friday, November 04, 2022
SIP is a way to make end connections for data with voice transfers over the internet.
FREMONT, CA: SIP is just one of the feasible “protocols” you can utilize for VoIP communications. It is the same as how HTTP operates with pages on the internet and gives a way to convert voice signals into data that devices used by a caller can decode.
SIP (Session Initiation Protocol) is a way to make end connections for data with voice transfers over the internet. The ‘trunking’ part is a bit of a red herring, as a trunk refers to a bundle of phone lines shared between users. Modern trunking is a virtual link between your PBX and the standard phone network (the PSTN) through an internet connection.
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Any business with an advanced IP PBX (a PBX that endorses the use of SIP to transfer data) also requires a way to connect its exchange to the wider PSTN. Traditionally (with older PBXs), this was done through ISDN.
With ISDN gradually being phased out, SIP Trunks are turning into the industry standard for connecting business phone networks over the internet. Using on-premise hardware combined with SIP trunks is especially suited to businesses with these qualities:
IT managers and telephony specialists in house
On-premise PBX systems require professionals to set up and keep them. These are perhaps agencies and managed service providers, but they will also require at least one in-house connection with some knowledge of telephony. On-premise PBX systems, combined with appropriate setup and maintenance, can be very costly in the short term.
Considerable Call Volume
Any business or site with a greater volume of outbound and inbound calls requires the flexibility, and cost-effectiveness SIP Trunking provides. Call centers, for example, sales or support hubs, are more likely to run more complicated PBX systems supported by specialist high-volume SIP services.
For these businesses, getting the proper SIP provider that fits their calling profile can mean major cost savings in the long run, with the downside of expending more on hardware and setup in the short term.
Hosted PBXs may be a better bet for other types of businesses, as they enable a similar range of features and dependability with almost none of the maintenance and setup costs of on-premise alternatives. A good VoIP provider should often help you choose the best option for your business.
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