Ribbon Communications Operating Company, Inc.

Rajangam Subramanian

Shaun Jaikarran Bharrat

Subhransu S Nayak

Prince Arimpur Cheerotha Philip

Gopannan Ramachandran

André Ouellet

Sanchit Chaudhary

Subhashis Chand

The present invention relates to methods, systems, and apparatus for learning-based automated call flow testing. An exemplary method of testing a Session Initiation Protocol (SIP) call processing entity includes the steps of generating a first test case based on a first reference call flow record for a first SIP call or a trace record for the first SIP call; executing the first test case which includes sending one or more SIP messages to the first SIP call processing entity; generating a first test case call flow record for a first SIP test call corresponding to the first test case; and determining whether or not the first SIP call processing entity failed the first test case based on a comparison of the first test case call flow record and the first reference call flow record.

Learning-based automated call flow testing

The present invention relates to methods and apparatus for detecting, minimizing and/or preventing message processing faults and in particular message processing fault avalanches at a single processing device and among a cluster of message processing devices. An exemplary method embodiment includes: enabling message blocking at a Session Border Controller (SBC) for Session Initiation Protocol (SIP) messages including a first key value in response to a first threshold number of SIP messages including the first key value having caused a SIP message processing failure; receiving, at the SBC, a SIP message including at least one key value; determining if message blocking is enabled for one or more key values included in the SIP message; and dropping by the SBC the SIP message in response to determining that message blocking is enabled for one or more key values included in the SIP message, but otherwise processing the SIP message by the SBC.

Communications methods and apparatus for minimizing and/or preventing message processing faults

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Bengaluru, India

Rajangam Subramanian