SIP TRUNKING
Save over 70% on ISDN costs

Sip TRUNKING
Replace existing telephone lines with SIP Trunks and
benefit from over 70% savings on ISDN costs and some of
the UK’s most competitive call tariffs.
InTechnology’s SIP Trunking solution has the power to deliver immediate and major cost savings to your
existing phone system, and with minimal risk and disruption. By removing your ISDN30 lines and routing call
traffic over your MPLS network, you no longer have to pay for ISDN30 line rental – usually over £5,000 per year
per line – and call charges can be up to 45% less than what you pay today.
It also gives you access to the many benefits of hosted IP Telephony, such as disaster recovery for voice and
remote working. You can still keep your existing PBX telephone system - we just replace your ISDN lines with
our SIP Trunk solution. There’s no need for management or maintenance because we do it for you.
Moreover, if you want to migrate to hosted IP telephony further down the line, we will manage the entire
process for you.
Key features
• Can replace or work alongside existing • Enables simple integration of home
ISDN30’s workers and small remote offices with IP
handsets over ADSL
• Add additional channels when needed, with no
practical upper limit - a 100Mb/s link, for • P
art of a managed migration to Unified
example, can support up to 2000 channels. Communication environment

KEY benefits
“We decided to trial Hosted OCS with our existing Unity IP Voice
system, and due to itscharges we’ve decided to expand the
Reduced line rental success
service across more users in the business.”carrier voice infrastructure over
SIP Trunks connect your PBX directly into InTechnology’s highly resilient
an MPLS connection, guaranteeing Quality of Service. This allows you to run both voice and data across
a single Wide Area Network without any degradation of performance.
With a SIP Trunk typically costing over 70% less than an ISDN30, customers could enjoy annual savings
of over £4,770 per ISDN30 line if all 30 channels are in use.
Reduced call charges
Calls to UK local and national numbers are up to 45% cheaper when compared with BT. There are also
no charges for internal calls between offices provided they are also using SIP Trunks or InTechnology
Unity IP Voice, InTechnology’s hosted IP telephony service.
Business Continuity
With a SIP Trunk, incoming calls can be quickly redirected to another location or a number of locations
from a web page. You can also provide staff with the ability to redirect their personal phone number to
any handset, such as a home number, so that they can continue to work even if there has been a major
incident.
Quickly add extra call capacity
SIP Trunks don’t have to replace all ISDN lines: they can be installed simply to meet extra demand or
for testing purposes, their inherent flexibility allowing effortless scaling up of capacity without affecting
existing infrastructure.
Maximise your PBX investment
If you decide to move to InTechnology’s managed phone service, Unity IP Voice, SIP Trunks allow you to
use your existing PBX in parallel with the new IP phone system for as long as required. You simply add
new Unity IP Voice seats to the IP voice network to cope with new offices or extra demand, only ever
paying for what you actually use.
Smooth migration to IP
Usually customers keep their own numbers and all call routing policies are unchanged because there
are minimal changes to the PBX. The additional ability to bring together different sites using any mixture
of SIP Trunk and Hosted PBX Extension means that organisations can remove the cost of calls between
sites to drastically reduce phone bills.

About
INTECHNOLOGY
InTechnology is ahead of the curve in the provision of business
IT managed services. Thanks to continued innovation and
thought leadership over the past 25 years, InTechnology can
today offer customers an unrivalled portfolio of Cloud-based
network, hosting, data and IP telephony solutions.
InTechnology is also the first UK provider to integrate hosted IP telephony with Microsoft
OCS, creating a unique fully managed Unified Communications platform.
For more information on SIP Trunking or any of InTechnology’s managed services visit
www.intechnology.com
email contact@intechnology.com or call 0800 983 2522
www.intechnology.com
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