DSP voice buffersize negotiation between DSPs for voice packet end devices

A sending device for use in a packet switching network system for transferring information that is in the form of packets comprising:

• buffer means having a predetermined first buffer size, the buffer means for use in storing information provided by a user in digital form that is to be sent, through the packet switching network, to a destination device,
• wherein the sending device is configured to send a request packet including the first buffer size to the destination device through the packet switching network,
• wherein said sending device includes:
• an originating telecommunications device operative to develop originating analog signals responsive to the information provided by the user;
• and
• an originating digital signal processing (DSP) device configured to develop originating digital interface signals by converting the originating analog signals to digital format and store the originating digital interface signals in the sending digital buffer;
• an originating interface device configured to develop network packets responsive to said originating digital interface signals for transfer in frames through the packet switching network to the destination device, and
• wherein the sending device and the destination device enter into negotiations as to a mutually-acceptable digital buffer size that is to be used for information transfer through the packet switching network system thereby increasing system performance by reducing or avoiding delays experienced by the user and the negotiations terminate upon one of the receiving a confirmation packet acknowledging the sending buffer size can be supported, the request packet is sent a number of times until a predetermined number of requests is reached with no response, receiving a reject message indicating that the sending buffer size is not supported at the destination device resulting in the sending device and destination device will use their own buffer sizes, a predetermined time interval equal to the predetermined number of requests multiple by a time associated with sending the request packet and receiving the confirmation packet expires, or a request for a different buffer size than was sent in the request packet is received generated at the destination device.

A method for negotiating buffer size in a packet switching network system for transferring information that is in the form of packets between a sending device and a receiving device comprising:

• receiving information to be transmitted to a destination device;
• sending a request packet including a first buffer size associated with a first digital buffer, through the packet switching network, to the destination device;
• negotiating a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system and the negotiations terminate upon one of the receiving a confirmation packet acknowledging the sending buffer size can be supported, the request packet is sent a number of times until a predetermined number of requests is reached with no response, receiving a reject message indicating that the sending buffer size is not supported at the destination device resulting in the sending device and destination device will use their own buffer sizes, a predetermined time interval equal to the predetermined number of requests multiple by a time associated with sending the request packet and receiving the confirmation packet expires, or a request for a different buffer size than was sent in the request packet is received generated at the destination device;
• receiving information provided by a user;
• developing originating analog signals based on the information provided by the user;
• developing originating digital interface signals by converting the originating analog signals to digital format;
• storing the originating digital interface signals in the first digital buffer;
• and
• developing network packets responsive to the originating digital interface signals for transfer in frames through the packet switching network to the destination device.

A computer readable medium having stored therein computer readable program code comprising instructions for performing the following steps:

• receiving information to be transmitted to a destination device;
• sending a request packet including a first buffer size associated with a first digital buffer, through the packet switching network, to the destination device;
• negotiating a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system and the negotiations terminate upon one of the receiving a confirmation packet acknowledging the sending buffer size can be supported, the request packet is sent a number of times until a predetermined number of requests is reached with no response, receiving a reject message indicating that the sending buffer size is not supported at the destination device resulting in the sending device and destination device will use their own buffer sizes, a predetermined time interval equal to the predetermined number of requests multiple by a time associated with sending the request packet and receiving the confirmation packet expires, or a request for a different buffer size than was sent in the request packet is received generated at the destination device;
• receiving information provided by a user;
• developing originating analog signals based on the information provided by the user;
• developing originating digital interface signals by converting the originating analog signals to digital format;
• storing the originating digital interface signals in the first digital buffer;
• and
• developing network packets responsive to the originating digital interface signals for transfer in frames through the packet switching network to the destination device.

A destination device, for use in a packet switching network system for transferring information that is in the form of packets between an originating device and the destination device via network signals through the packet switching network comprising:

• a receiving digital buffer with a predetermined receiving buffer size, the receiving digital buffer configured to store information that is received from the originating device;
• a destination interface device operative to develop destination DSP signals responsive to said network signals received from the originating device;
• a destination DSP device operative to store the destination DSP signals in the receiving digital buffer and develop destination telecommunications signals responsive to said destination DSP signals by converting said destination DSP signals from digital format to analog format;
• and
• a destination telecommunications device responsive to said destination telecommunications signals,
• wherein the destination device is operative to:
• receive a request packet, including a sending buffer size of the originating device, from the originating device;
• determine whether or not the sending buffer size is supported by the destination device;
• and
• send a response to the originating device, through the packet switching network, as to whether or not the received sending buffer size is supported by the destination device, and
• wherein the originating device and the destination device enter into negotiations as to a mutually-acceptable digital buffer size that is to be used for information transfer by the packet switching network system thereby increasing system performance by reducing or avoiding delays experienced by the user and the negotiations terminate upon one of the sending a confirmation packet acknowledging the sending buffer size can be supported, sending a reject message indicating that the sending buffer size is not supported at the destination device resulting in the sending device and destination device will use their own buffer sizes, a predetermined time interval equal to the predetermined number of requests multiple by a time associated with sending the request packet and receiving the confirmation packet expires, or sending a request for a different buffer size than was sent in the request packet is sent from the destination device.

A destination device, for use in a packet switching network system for transferring information that is in the form of packets between an originating device and the destination device via network signals through the packet switching network comprising:

• receiving buffer means having a predetermined receiving buffer size, the receiving buffer means for use in storing information that is received from the originating device;
• a destination interface device operative to develop destination DSP signals responsive to said network signals received from the originating device;
• a destination DSP device operative to store the destination DSP signals in the receiving buffer means and to develop destination telecommunications signals responsive to said destination DSP signals by converting said destination DSP signals from digital format to analog format;
• and
• a destination telecommunications device responsive to said destination telecommunications signals,
• wherein the destination is operative to:
• receive a request packet, including a sending buffer size of the originating device, from the originating device;
• determine whether or not the sending buffer size is supported by the destination device;
• and
• send a response to the originating device, through the packet switching network, as to whether or not the sending buffer size is supported by the destination device, and
• wherein the originating device and the destination device enter into negotiations as to a mutually-acceptable digital buffer size that is to be used for information transfer by the packet switching network system thereby increasing system performance by reducing or avoiding delays experienced by the user and the negotiations terminate upon one of the sending a confirmation packet acknowledging the sending buffer size can be supported, sending a reject message indicating that the sending buffer size is not supported at the destination device resulting in the sending device and destination device will use their own buffer sizes, a predetermined time interval equal to the predetermined number of requests multiple by a time associated with sending the request packet and receiving the confirmation packet expires, or sending a request for a different buffer size than was sent in the request packet is sent from the destination device.

A method for negotiating buffer size between an originating device and a destination device for use in a packet switching network system through a packet switching network comprising:

• receiving a request packet, including a sending buffer size of the originating device, from the originating device;
• converting the request packet into analog form;
• determining whether or not the sending buffer size is supported by the destination device;
• sending back a response to the originating device, through the packet switching network, as to whether or not the sending buffer size is supported by the destination device;
• and
• negotiating as to a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system to reduce or avoid delays and the negotiations terminate upon one of the sending a confirmation packet acknowledging the sending buffer size can be supported, sending a reject message indicating that the sending buffer size is not supported at the destination device resulting in the sending device and destination device will use their own buffer sizes, a predetermined time interval equal to the predetermined number of requests multiple by a time associated with sending the request packet and receiving the confirmation packet expires, or sending a request for a different buffer size than was sent in the request packet is sent from the destination device.

A computer readable medium having stored therein computer readable program code comprising instructions for performing the following steps:

• receiving a request packet, including a sending buffer size associated with the originating device, from the originating device;
• converting the request packet into analog form;
• determining whether or not the sending buffer size is supported by the destination device;
• sending back a response to the originating device, through the packet switching network, as to whether or not the sending buffer size is supported by the destination device;
• and
• negotiating as to a mutually-acceptable buffer size that is to be used for information transfer through the packet switching network system to reduce or avoid delays and the negotiations terminate upon one of the sending a confirmation packet acknowledging the sending buffer size can be supported, sending a reject message indicating that the sending buffer size is not supported at the destination device resulting in the sending device and destination device will use their own buffer sizes, a predetermined time interval equal to the predetermined number of requests multiple by a time associated with sending the request packet and receiving the confirmation packet expires, or sending a request for a different buffer size than was sent in the request packet is sent from the destination device.

A sending device, comprising:

• an analog originating device configured to generate an analog output responsive to a user input;
• an originating digital signal processing (DSP) device configured to convert the analog output into a digital output and to store the digital output in a sending buffer having a fixed and predetermined sending buffer size;
• and
• an originating interface device configured to generate network signals for transmission in a packet network responsive to the digital output;
• wherein the network signals comprise a request packet including the fixed and predetermined sending buffer size of the sending buffer and wherein the originating interface device is configured to transmit the request packet to a destination device having a receiving buffer with a fixed and predetermined receiving buffer size, and
• wherein the originating interface device is further configured to:
• receive an acknowledgement packet from the destination device responsive to the request packet;
• repeat the transmission of the request packet until a timeout limit is reached or the acknowledgment packet is received;
• and
• send at least one of a confirmation packet and a reject packet responsive to the acknowledgment packet.