Systems and methods for handling multiple concurrent session initiation protocol transactions

Systems and methods for handling the processing of multiple SIP transactions that have been requested at substantially the same time can involve establishing a priority order for processing the SIP transactions, and then individually processing the SIP transactions based on the established priority order. One or more SIP transactions having a lower priority can be held in a SIP processing queue of a software application until the processing of SIP transactions having a higher priority has been completed. Each time that the processing of a higher priority SIP transaction is completed, the next-highest priority SIP transaction in the queue is submitted for processing. Also, where possible, two or more SIP transactions in the queue may be consolidated into a single SIP transaction.