SIP Trunking

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SIP - Session Initiation Protocol

SIP (Session Initiation Protocol) is used to send voice calls over the internet via an IP telephone system rather than using traditional PSTN (analogue) and ISDN (digital) lines.


SIP Trunks are now the number one choice for voice communication where an onsite PBX solution is utilised. They are already used by thousands of businesses nationwide.


Why SIP Trunks?

SIP Trunks are a great solution in the event of a disaster recovery situation. They are also very cost-effective compared to traditional PSTN and ISDN services


Can I change my existing lines to SIP Trunks?

Yes you can. Most PSTN and ISDN numbers can be easily ported onto our SIP platform.

Benefits of SIP Trunks

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Cost Savings

Lower connection, rental and call charges, with the option of free calls.


Connecting People

Technology which connects multiple offices and remote workers


Unified Communications

Your phone network and data service can connect off the same converged network, saving you money.


Quality

HD quality calls all of the time with our resilient connectivity.


Scalability

Can be increased or decreased within 24 hours, without any equipment changes.

Number Portability

Use numbers with any UK area code anywhere in the world, giving you a sense of local presence.


Business Continuity

In the event of a disaster, your calls will be automatically re-routed to where you need them.


Fraud Protection

Security available for outbound premium and international calls.


Service & support

Receive customer service and technical support as standard, with optional 24/7 support.

How we can help.

For more information about how this solution could help your business, contact us today on 020 33 888 888 or email sales@opentelecom.co.uk