Instant Online SIP Savings Calculator

Make the move now to SIP because ISDN lines are being phased out starting in 2020!

SIP trunking is an alternative to ISDN phone lines. ISDN will be discontinued in a little over six years from now and carries a substantial recurring cost to any business. SIP works by transferring your voice communications over fibre optic cables (over the internet) improving call quality, reliability and significantly reducing costs by on average 80%. Our calculator below will provide an outline of your predicted yearly savings in Great British Pounds (£) by switching from ISDN to SIP.

Simply fill in the form below.

* Required Field

	Your name (optional):
	Your email (optional):
	Number of sites: *
	Number of ISDN lines / channels: *
	Number of analogue lines (eg. fax or land lines): *
	Number of DDI's: *
	Tick if you don't know your costs:
	Monthly ISDN line rental charge (per line) £:
	Monthly analogue line rental charge (per line) £:
	Monthly DDI charge (per number) £:
	Average monthly call spend £:
	Spam Check: what is 3 + 4?*

Please click here for more information about West Pier's SIP trunks.