SIP trunking is making large inroads into both the analogue and ISDN telephone line market, with the figures for 2009 estimated to be close to a 100,000 new SIP trunks, with the majority of the connections made by larger corporations.
In 2010 the forecast is set for a number closer to 300,000 based on the current trend with the added boost of newer, more reliable, faster data connections and advances in the Ethernet technology. The reason that this technology is growing so fast is the cost savings and the additional features that SIP brings to business.
Cost savings are brought about by removing either the business ISDN or Analogue telephone lines and replacing them with SIP trunks over a suitable data connection. Figures suggest that a SIP trunk is around a half to two thirds cheaper to rent when compared to a conventional telephone line. Further savings can also be made on telephone calls, especially if the business has multiple sites as calls between are provided at no cost.
Additional SIP Trunking features include the ability for businesses to have global telephone numbers routed to the same single point of presence complete with the option to retain the existing telephone numbers should the business move outside of its current local exchange area, a problem that has thwarted many companies before in the past. The last features are PBX dependent, and include call handling facilities such as CLI, call divert, divert on failure etc.
A business has a two main options to connect to a SIP trunking solution and they are related to the age of the existing telephone system. If an older telephone system is installed then the connection can be made using a SIP gateway, a solution recently developed by SIP trunking vendors.
In comparison newer telephone systems are generally shipped with the ability to connect to a SIP trunk either inbuilt or with the addition of a SIP trunk module or license key.
Once the business is successfully connected there should be no noticeable difference to the way the business operates or handles it telephone calls as SIP trunks, for the most part at least, have been engineered to emulate a traditional phone lines.
In the reliability stakes a SIP trunk can now compete on a level playing field, however this is very much dependent on the vendor, it’s chosen data hardware and the particular data networks that are chosen to deliver the SIP trunking service over. Buyer be warned.
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[...] SIP Trunking SolutionsMany businesses are heavily reliant on their PBX systems and the switch to VoIP may seem a possible liability to them. the option of a SIP Trunking solution is available to those looking to gain the features and benefits of VoIP services, yet retain the use of their PBX. a SIP Trunking solution works with a PBX which a hosted VoIP line is passed through, giving a business all the benefits of hosted VoIP services yet retaining the use of their original PBX system. this option is perfect as a slow introduction to the benefits of VoIP and necessary features to benefit a business. [...]