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ICON What is SIP Trunking

SIP trunk simply stands for Session Initiation Protocol that is a service offered by an ITSP (Internet Telephony Service Provider) in conjunction with a PBX/IP-PBX or as replacements for traditional PRI, PSTN (analog circuits) but can maintain the same and even more advanced features of what the traditional circuit does. Eliminating the need to subscribe expensive PRI/analog traditional lines while allowing the user to buy just the capacity they need.

A SIP trunk is a service offered by an ITSP (Internet Telephony Service Provider) that permits businesses that have a PBX installed to use Voice-over-IP (VoIP) also outside the enterprise network by using the same connection as the Internet connection.

SIP trunks can offer significant cost-savings for enterprises, eliminating the need for local PSTN gateways, costly ISDN BRIs (Basic Rate Interfaces) or PRIs (Primary Rate Interfaces).

There are three components necessary to successfully deploy SIP trunks: a PBX with a SIP-enabled trunk side(IP PBX)or an enterprise SIP Device with PBX and an Internet telephony or SIP trunking service provider.

What is SIP Trunking

ICON Why Switch to SIP Trunk ?

  • Keep pace with the VoIP Trend and its rapid changes in technology –

    SIP Trunk becomes more make sense and mature in the market nowadays while the providers in this field has also increased substantially and this trend is expected to continue.

  • Save Money –

    Effectively save local, long distance and broadband Internet service costs up to 60% off comparing to analog circuits while maintaining the same service quality.

  • Save Time –

    All-In-On Package offers you multiple choices of services and features that no needs to shop around and also easier to get support.

  • Greater levels of Capacities –

    SIP Trunk enables multiple forms of communication allowing for greater levels of capacities such as T.38 Faxing Support, apply local DID or different cities’ DID allow each employee to have their direct phone line or set up points of presence in multiple Canada cities from which not only pay less on set up Toll-Free Services, but also pump up company image, increases the flexibility compare to traditional practice.

  • Still User Friendly –

    SIP IP PBX system keep existing capabilities via seamless integration as same as using traditional phone system, which spend less time for end users for training and get familiar of its application.

  • Easy Management –

    Bundle Package make VoIP services in one bill, one management.

  • Easy Add/Reduce SIP Trunk -

    Worry Free once change of business size because SIP Trunk rather easier to install and tune up in days without slowing down the on going business.

  • Free Up Unused Bandwidth –

    This bandwidth can be dynamically allocated between voice and data with SIP trunks, for use in less intensive applications such as e-mail and general on-line application, helping to avoid waste.

  • Reduce Risk But Maximize the Value of Existing Telephony Equipment –

    Most IP-PBX and Phones are compatible and upgradeable with SIP Trunk so that it can eliminate the need to invest in costly equipment. With the improved voice quality of voice based IP communication, it is also allowable of keeping the existing benefits from what the traditional phone system does and even enhance with more Add-On new features from SIP Trunk.

ICON What you need to know before go for SIP Trunk?

Moving to SIP Trunk telephony may require more than just a new IP-PBX. Be sure you are getting the right points to avoid unexpected surprises; you need to know how much more before you go for it. Some questions may be greatly helpful to know how to pin down your costs include:

First, get to know how many simultaneous calls you usually received as per your daily operation, what size for business and that to check the required bandwidth you may need. You know when a SIP Trunk is not fully being used; its unused bandwidth is free-up for use in less intensive applications, such as e-mail and other on-line activities. This dynamic allocation of bandwidth is highlighted as an advance feature of SIP Trunks that traditional analog or PRI technologies doesn’t has at all.

Second, clarify if the existing IP-PBX/PBX is SIP-enabled model which is compatible to work with SIP Trunk or purchase new equipment. Whether use your existing phones, coupled with some way to combine your existing phones or need a new IP phones.

Third, compare see if your Potential Provider is able to provide any add-on services and features like T.38 Faxing support, provision of DID, VOIP solution etc. That’s what TieUs All-in-One Stop concept works for.

Welcome to tell us more and we will give you a solution.


ICON How can SIP Trunk VoIP help business

SIP Trunk VoIP can be deployed from companies existing PBX system directly if it is IP enabled. If not, a gateway is installed that converts the traditional POTS line to VoIP. SIP Trunk VoIP is best suite for small businesses that want to deploy telephony phone service while utilizing their existing PBX phone system. If PBX is not IP enabled a gateway is installed on the premise on the PBX and converts all calls from traditional phone service to VoIP. This type of VoIP service can drastically decrease company phone bills up to 60%.

ICON Knowledge of SIP connection

A SIP (Session Initiation Protocol) connection is a service offered by many ITSP (Internet Telephony Service Providers) that connects a company's PBX to the existing telephone system infrastructure(PSTN) via Internet using the SIP VoIP standard.

Using a SIP connection may simplify administration for the organization as the SIP connection typically will use the same Internet connection that is used for normal data. This eliminates installation and maintenance of a BRI/PRI connection at each location. However, this almost always comes at the expense of the reliability of a standard TDM PSTN connection.

Thanks to the SIP protocol, transmitting Caller ID and other call-related information is easy and even other information of the caller can be transmitted. Because SIP connections are digital, the voice is also transmitted digitally and can have excellent audio quality and issues from analog lines like connect and disconnect detection are simple.This makes it possible to assign Direct Inward Dialing numbers for every extension, so that the auto attendant in the PBX plays a less important role.