IP device exchange apparatus and call connection changing method

摘要

An IP device exchange apparatus includes: a connector that is connected to a first IP phone, a second IP phone, and a third IP phone; a memory for storing a coding scheme obtained by call setting which is negotiated between the first and second IP phones; and a controller that, when receiving a call instruction for call connection to the second IP phone from the third IP phone during communication between the first and second IP phones, employs the coding scheme stored in the memory to perform, between the third IP phone and the IP device exchange apparatus, call setting between the second and third IP phones, while maintaining call connection between the first and second IP phones, thereby changing the call connection between the first and second IP phones to call connection between the second and third IP phones.

主权项

1. An IP device exchange apparatus, comprising:
a connector that is connectable to a plurality of IP phones, including a first IP phone and a second IP phone; a memory configured to store a coding scheme obtained through a negotiation to establish a call between the plurality of IP phones, and to store session change enable/disable information, indicating whether or not each of the plurality of IP phones is capable of changing sessions; a RTP packet processor configured to switch RTP packets between the IP phones communicating with each other; and a controller configured to, when receiving a call instruction for a call connection between the first IP phone and the second IP phone of the plurality of IP phones while neither the first IP phone nor the second IP phone is involved in a call, employ the coding scheme stored in the memory, and judge whether the RTP packet processor is needed on the basis of the session change enable/disable information of the first IP phone and the second IP phone, wherein when the RTP packet processor is judged to be needed, the first IP phone and the second IP phone communicate with each other by transferring the RTP packets via the RTP packet processor within the IP device exchange apparatus, and wherein when the RTP packet processor is judged not to be needed, the first IP phone and the second IP phone communicate with each other without using the RTP packet processor.