If you already have a good and reliable IP PBX system but is looking to make better use of it then SIP trunk is the answer for you. SIP or session internet protocol is another VoIP solutions to reduce telecommunications cost by allowing connection to regular public telephones giving you the outside connection to do business and perform inbound and outbound sales calls.

Traditional telephone lines require miles of expensive copper lines to convey voice calls from your client’s phone handset to through the carrier then eventually to your enterprise. Additionally this types of conventional systems have surcharges like line rentals, PSTN gateways, ISDN BRIs (Basic Rate Interfaces), PRIs (Primary Rate Interfaces) and not to mention the highly priced calling rates especially when making international calls. SIP trunk has the capability to reduce both infrastructure and usage cost for your telephony system simply by eliminating the above mentioned surcharges while enabling to receive and make multiple phone calls all at the same time.

SIP trunking will also act as another form of unified communication since it works over the cloud integrating data and voice in one connection especially if you are already using a cloud PBX system.

Important Points to Consider

One of the most important aspects before deploying a sip trunk registration is the PBX itself, normally an IP based PBX is favored because of the standard compatibility it has, but traditional systems will also work beautifully as long as SIP trunk connectivity is available.

Another is the border element (can be your firewall mechanisms with SIP trunking capabilities) which will allow connection from your local area network to the provider. A good and reliable border element will ensure quality incoming and outbound voice calls regardless of the volume of calls.

Next is the provider or commonly termed as Internet Telephony Service Provider, using their networking system providers will allow connection to regular public telephones. There are a number of companies in the market today, be sure to double check the company background and shop around for great deals before settling for one.
Setting up a data encryption mechanism is also essential since it will serve as your line of defense and establish privacy during VoIP calls.

Lastly is your internet connection, since your unified communications will be routed on the cloud it is best to have a high speed internet connection usually a business plan which can handle immense traffic.

Author's Bio: 

David Clarkson is a well versed telecommunication engineer with years of background in the industry, In his experience the demand of structuring internal and external communications for small to large scale businesses was perfectly solved by cloud PBX technology and has recommended it since then.