Philips SBX12, Operating Instructions Manual

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Last Number Redial:
Last number redial is available to all models of SBX8 and SBX12.
Last number redial is automatically stored for all digits outdialled before the line connect is made.
Access to the last number redial is by dialling 45.
When last number redial is accessed and:
(1) All trunks are busy, 10 seconds of Unavailable Tone is returned. Ringback when free (dial 6)
can be used to request the next free trunk and is automatically outdialled when a trunk is
allocated.
(2) A trunk is available, 1 second of Dial Tone is returned. The last number is automatically
outdialled.
A toll bar check is made on last number redial, before dial out and after a trunk has been requested.
Abbreviated dialling and last number redial are available to dial “1” access trunks only and to
either parenting or central exchange trunks.