43XX Parkend SIP Extensions (on Parkend-D1 PBX)
4300 - Parkend Exchange (Avaya Digital SIP Phone)
4301 - Parkend Exchange (Avaya Digital SIP Phone)
4302 - Parkend Staff Room (Avaya Digital SIP Phone)
4303 - Parkend Station Masters Office
4308 - Ring Group. Calls 4309,4310 and 4311 simultaneously
4309 - Configured for Whitecroft Platform South
4310 - Configured for Whitecroft Station Masters Office
4311 - Configured for Whitecroft Level Crossing
4320 - Parkend Ground Frame
4321 - Parkend Exchange (ATA Phone)
4322 - Parkend Platform
4325 - Configured for Whitecroft Signal Box
4331 - Parkend Goods Shed
4381 - Configured. USed by Roger for testing - can be made free
4382 - Configured. Used by Roger for testing - can be made free
4383 - Configured. Used by Roger for testing - can be made free
4384 - Configured. Used by Roger for testing - can be made free
4385 - Configured. Used by Roger for testing - can be made free
4386 - Configured. Used by Roger for testing - can be made free
4391 - Configured. Spare
4392 - Configured. Spare
4393 - Parkend Box to Box Test
4398 - System Access Test Number (DISA)
4399 - Test Number (inverted ring)

Non Geographical Numbers (on Norchard-D1 PBX)
4400 - Talking Clock - Pat Simmonds
4401 - Echo Test
4402 - Thomas Test Music
4403 - Talking Clock - Gordon Gow
4404 - Ringback Test Number- calls you back after you hang up
4416 - DialADisk
4498 - System Access Test Number (DISA)
4499 - Test Number (inverted ring)

Non Geographical Extensions (on Norchard-D1 PBX)
4330 - Operations
4332 - Operations
4333 - Operations
4470 - used by Roger for testing
4471 - used by Roger for testing
4472 - used by Roger for testing
4473 - used by Roger for testing
4474 - used by Roger for testing
4475 - used by Roger for testing
4476 - used by Roger for testing
4477 - used by Roger for testing
4478 - used by Roger for testing
4479 - used by Roger for testing
4480 - unallocated
4481 - Ian Stubbs
4482 - Peter Medcalf
4483 - Martin Lunn (BudgeTone-100)
4484 - Rick Gillingham (BudgeTone-100)
4485 - John Bathgate
4486 - Paul Seward
4487 - Ray Willey
4488 - Charles Bristow
4489 - Test number - used by Peter
4490 - Norchard Exchange Phone
4491 - Paul Seward
4492 - Ian Stubbs
4493 - Sam Bolingbroke
4494 - Roger
4495 - Test number - used by Roger
4496 - Sam Bolingbroke
4497 - Used by Peter's FreePBX link box

45XX - Norchard SIP extensions (on Norchard-D2)
4500 - Norchard Avaya Digital SIP phone in Telecoms Office
4598 - System Access Test Number (DISA)
4599 - Test Number (inverted ring)

47XX - Parkend North SIP extensions (on Parkend-D1)
4710 - Parkend North Signal Box (Avaya Digital SIP Phone)
4725 - Parkend North Signal Box
4798 - PBX System Access Test Number (DISA)
4799 - Test Number (inverted ring)

Strowger Link Numbers (on Norchard-D3)
498 - PBX System Access Test Number (DISA)
499 - Test Number (inverted ring)

Page provided by John Bathgate This page was last updated on 16th January 2020