Method and apparatus for carrying telephony network traffic over an ATM network
First Claim
Patent Images
1. A method, comprising:
- receiving a call notice from a telephony signaling control network, the call notice including TDM parameters, the TDM parameters including a TDM time slot over which a call will be carried and a trunk line that couples an ATM source gateway to a telephony network, the TDM time slot being associated with the trunk line that couples the ATM source gateway to the telephony network;
sending an acknowledgement to the telephony signaling control network, the acknowledgment is an ATM-TDM correlation tag having information that associates an ATM connection with the TDM parameters, the ATM connection being used to transport the call from the ATM source gateway to an ATM destination gateway;
sending the ATM-TDM correlation tag to the ATM destination gateway; and
receiving said ATM-TDM correlation tag from said ATM destination gateway as a SETUP message.
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Abstract
A method that sends ATM source identification and an ATM-TDM correlation tag from an ATM source gateway to a telephony signaling control network; and then receives at an ATM destination gateway the ATM source identification and the ATM-TDM correlation tag as sent from the telephony signaling control network; and then sends the ATM-TDM correlation tag from the ATM destination gateway to the ATM source gateway to establish a connection between the ATM destination gateway and the ATM source gateway.
37 Citations
29 Claims
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1. A method, comprising:
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receiving a call notice from a telephony signaling control network, the call notice including TDM parameters, the TDM parameters including a TDM time slot over which a call will be carried and a trunk line that couples an ATM source gateway to a telephony network, the TDM time slot being associated with the trunk line that couples the ATM source gateway to the telephony network; sending an acknowledgement to the telephony signaling control network, the acknowledgment is an ATM-TDM correlation tag having information that associates an ATM connection with the TDM parameters, the ATM connection being used to transport the call from the ATM source gateway to an ATM destination gateway; sending the ATM-TDM correlation tag to the ATM destination gateway; and receiving said ATM-TDM correlation tag from said ATM destination gateway as a SETUP message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory machine readable medium having instructions which when executed by a processing core within an ATM gateway cause a method to be performed, said method comprising:
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receiving a call notice from a telephony signaling control network to connect through an ATM network including said ATM gateway, the call notice including TDM parameters including information indicative of a TDM time slot over which a call will be carried and information indicative of a trunk line that couples an ATM source gateway to a telephony network, the TDM time slot being associated with the trunk line that couples the ATM source gateway to the telephony network; in response to the receiving the call notice sending identification of said ATM gateway and ATM-TDM correlation tag having information that associates an ATM connection with the TDM parameters, the ATM connection being used to transport the call; and
,in response to a message having said ATM-TDM correlation tag having been received from another node in said ATM network, using said ATM-TDM correlation tag to correlate said call with a switched virtual circuit within said ATM network that said message was sent to establish so that said call'"'"'s traffic will be carried by said switched virtual circuit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An ATM gateway, comprising:
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means for receiving a call notice from a telephony signaling control network to connect through an ATM network including said ATM gateway, the call notice including TDM parameters that include information indicative of a TDM time slot over which a call will be carried and information indicative of a trunk line that couples an ATM source gateway to a telephony network, the TDM time slot being associated with the trunk line that couples the ATM source gateway to the telephony network; means for sending identification of said ATM gateway and an ATM-TDM correlation tag having information that associates an ATM connection with the TDM parameters, the ATM connection being used to transport the call, the sending responsive to the receiving the call notice from the telephony signaling control network; and
,means for using said correlation tag to correlate said call with a virtual circuit within said ATM network that said message was sent to establish so that said call'"'"'s traffic will be carried by said virtual circuit, the using responsive to receiving a message from another node in said ATM network, the message including said ATM-TDM correlation tag. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. An ATM source gateway, comprising:
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a communication interface to; receive notification of a call from a telephony signaling control network, the notification identifying a TDM time slot over which said call will be carried, said TDM time slot on an trunk line that couples the ATM source gateway to the telephony network; send ATM source identification and an ATM-TDM correlation tag having information that associates an ATM connection that will be used to transport a call with TDM parameters that will be used to transport the call to the telephony signaling control network; and receive a SETUP message with said ATM-TDM correlation tag from an ATM destination gateway; and a mapping table to reflect that a VPI/VCI address received in the SETUP message corresponds to said TDM time slot. - View Dependent Claims (29)
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Specification