SIP trunks are simply another way of saying VoIP Provider for your phone system. A SIP trunk is a connection from a PBX (phone system) using SIP (Session Initiation Protocol) to an ITSP (Internet Telephony Service Provider).
It might sound complicated but it’s really quite simple, SIP trunks take the place of your legacy telephone company. Most phone systems out there today are more than a couple of years old and are likely based on circuit switched technology. Newer IP-PBXs use packet switching technology, which means they leverage the Internet to deliver the same features you have now, and then some. The difference could be minor or major depending on what your PBX is capable of and what your ITSP can deliver in terms of features and functionality.
Since the PSTN (public switch telephone network) is tied to aging circuit switched technology it has limitations in terms of what media it can support. Essentially, it can deliver low quality voice, that’s it.
SIP Trunks replace older PRI and POTS interfaces that we are used to and bring to the table a wide variety of communications options. Depending on your IP-PBX and your ITSP you could potentially look forward to HD (High Defenition) Voice and potentially HD Video.
HD voice (and video) for small business in Canada will happen, it’s only a matter of time. As broadband providers increase upstream bandwidth and dual WAN link-failover devices become common place, SIP trunking will accellerate in growth and on-net (calls made on the ITSP network) HD Voice will become common place.
Unfortunately, HD communication off-net (eg. PSTN) is not going anywhere at any great speed. Jeff Pulver is back as he reboots the communications industry with his new HD Communication Summit. I welcome Jeff back with open arms, if anyone can convince operators to increase speed towards wide-band/HD adoption it would Jeff Pulver.
Today we can see SIP trunking providers and hosted pbx providers supporting wideband codecs and devices on their networks. This will allow user to communicate in high definition with other users that have devices that support it, in brief you could have better calls between you and your colleagues in the office and remote office workers connected to the same PBX, and that is a step in the right direction.
In addition to the Lypp service, Lypp is offering an API that allows developers the ability to create his/her own telephony feature in an application…
VANCOUVER, October 2, 2007 – Lypp (http://lypp.com) announced today the availability of its first API (Application Programming Interface) and wholesale VoIP termination service, decreasing time to market for developers when integrating Internet Telephony into any application.
"We have built a REST-based VoIP API that will fast track VoIP Integration for any developer that understands XML," said Lypp CEO Erik Lagerway. "Until now the only way developers could integrate scalable and reliable telephony was through acquisition of expensive equipment and infrastructure. Lypp has removed those barriers by building a simple API and allowing our customers to leverage our access to the North American PSTN (Public Switched Telephone Network) including but not limited to TELUS, Rogers, Bell, Verizon, AT&T, Sprint, SBC and BellSouth, through the most trusted interconnect providers in the business including Level 3, Global Crossing and XO. We are working with the best partners to deliver the best call experience in North America and we're excited that our partners can leverage our API to deliver this experience to their customers."
The Lypp API enables rapid VoIP feature implementation, including: Click-to-Call and Click-to-Conference, virtual phone booth calling features, and integration of basic and advanced telephony such as embedded email and profile call links for FaceBook, MySpace and other web-based applications and services.
Lypp is disrupting the telecommunications industry by using the data
connections and applications that already exist on cell phones and mobile
devices to give users features and pricing that the wireless carriers don't,
won't or can't offer. Lypp also provides wholesale services leveraging its
REST-based API to enable integration of VoIP features with other web-based
applications and services.
The Lypp service is operated and owned by Gaboogie Canada Inc.
For further information: Daniel Gibbons, (778) 998-9543, firstname.lastname@example.org