Implementing feature interactions between an AIN-based service and a switch-based forwarding service
View Patent ↗The present invention provides a method and system for implementing feature interactions between an AIN-based service and a switch-based call-forwarding service. In the present invention, the switch-based call-forwarding generates an Off-Hook Delay (OHD) trigger. In response, the SSP suspends call processing and sends the forward-to number to the SCP. Based upon the SCP's determination of whether the forward-to number is for voicemail and other criteria such as time of day, day of the week, etc, the SCP determines whether the switch-based call-forward should be permitted or inhibited.
1. A method for routing calls comprising:
at a service switching point associated with a subscriber line having switched-based call forwarding to voicemail associated therewith and having a specific digit string associated therewith, detecting an Off-Hook Delay trigger, wherein the Off-Hook Delay trigger includes a forward-to number;
suspending call processing to the forward-to number;
sending an infocollected message to a service control point associated with an Advanced Intelligent Network, wherein the infocollected message includes the specific digit string and the forward-to number;
comparing the forward-to number to a voicemail number associated with the subscriber line; and
based on the comparison determining whether to resume call processing to the forward-to number.
2. The method of claim 1 , wherein comparing the forward to number to a voicemail number associated with the subscriber line includes evaluating criteria to determine whether to forward the call to another number.
3. The method of claim 2 , wherein the criteria comprises a time of day.
4. The method of claim 3 , further comprising thereafter, forwarding the number to a business line associated with the subscriber line, a wireless line associated with the subscriber line, or a voicemail line associated with the subscriber line.
5. The method of claim 1 , wherein the criteria comprises a day of the week.
6. The method of claim 5 , further comprising thereafter, forwarding the number to a business line associated with the subscriber line, a wireless line associated with the subscriber line, or a voicemail line associated with the subscriber line.
7. The method of claim 1 , wherein comparing the forward-to number to a voicemail number associated with the subscriber line includes determining whether to forward the call to multiple other numbers.
8. The method of claim 7 , further comprising, forwarding the call to multiple other numbers.
9. The method of claim 1 , further comprising, forwarding the call to the voicemail number.
10. The method of claim 1 , wherein the switched-based call forwarding to voicemail comprises:
call-forward on busy; and
call-forward on no answer.
11. The method of claim 1 , wherein the forward-to number comprises a telephone number for a different subscriber line.
12. The method of claim 1 , wherein the forward-to number comprises a telephone number for a voicemail box.
13. The method of claim 1 , wherein the Off-Hook Delay trigger is generated by calls from the subscriber line.
14. The method of claim 13 , wherein calls from the subscriber line comprise switched-based forwarding calls from the subscriber line.
15. The method of claim 13 , wherein calls from the subscriber line comprise calls forwarded to a voicemail box.
16. A system for routing calls comprising:
a service switching point associated with a subscriber line having switched-based call forwarding to voicemail associated therewith and having a specific digit string associated therewith; and
a service control point in communication with the service switching point;
wherein the service switching point is configured to:
detect an Off-Hook Delay trigger, wherein the Off-Hook Delay trigger includes a forward-to number;
suspend call processing to the forward-to number; and
send an infocollected message to a service control point associated with an Advanced Intelligent Network, wherein the infocollected message includes the specific digit string and the forward-to number; and
wherein the service control point is configured to compare the forward-to number to a voicemail number associated with the subscriber line and determine whether to resume call processing to the forward-to number.
17. The system of claim 16 , wherein the Off-Hook Delay trigger is generated by calls from the subscriber line.
18. The system of claim 17 , wherein calls form the subscriber line comprise switched-based forwarding calls from the subscriber line.
19. The system of claim 17 , wherein calls from the subscriber line comprise calls forwarded to a voicemail box.
20. The system of claim 16 , wherein the switched-based call forwarding to voicemail comprise:
call-forward on busy; and
call-forward on no answer.