Voice and data exchange over a packet based network
A voice queue includes a primary queue and a secondary queue. The secondary queue is operable to store voice packets and generate timestamps for the voice packets. The primary queue is operable to receive the voice packets from the secondary queue, store the timestamps for the voice packets, and store sequence numbers for the voice packets.
1. A method, comprising:
receiving a plurality of voice packets in a voice queue for a depacketizing engine, the plurality of voice packets having been encoded at an encoding interval by a far-end voice encoder;
identifying a plurality of packet arrival times indicating when the plurality of voice packets arrived at the depacketizing engine, the plurality of packet arrival times being identified at a time resolution, the time resolution being not less than the encoding interval;
timestamping each of the plurality of voice packets with a respective one of the plurality of packet arrival times; and
transforming the plurality of voice packets into a plurality of frames of a plurality of digital voice samples.
2. The method of claim 1 , wherein the time resolution is at most one millisecond.
3. A voice queue, comprising:
a secondary queue for a depacketizing engine, the secondary queue operable to:
store a plurality of voice packets;
generate a plurality of timestamps for the plurality of voice packets; and
a primary queue for the depacketizing engine, the primary queue operable to:
receive the plurality of voice packets from the secondary queue;
store the plurality of timestamps for the plurality of voice packets; and
store a plurality of sequence numbers for the plurality of voice packets.
4. The voice queue of claim 3 , further comprising a memory configured to store up to 500 milliseconds of the plurality of voice packets, wherein the memory is allocated between the primary queue and the secondary queue.
5. The voice queue of claim 4 , wherein the memory is configured to store up to 4000 bytes.
6. The voice queue of claim 4 , wherein the memory is configured to store up to 2K words of storage.
7. The voice queue of claim 3 , wherein the secondary queue is operable to receive the plurality of voice packets at a rate of 64 kb/s.
8. The voice queue of claim 7 , further comprising a memory configured to store up to 4000 bytes.
9. The voice queue of claim 3 , wherein the plurality of voice packets comprise 16-bit pulse-code modulated (PCM) data.
10. The voice queue of claim 9 , further comprising a memory configured to store up to 2K words of storage.
11. The voice queue of claim 3 , wherein the secondary queue is further configured to store the plurality of voice packets in accordance with a voice encoding protocol.
12. The voice queue of claim 3 , wherein the primary queue is further configured to store the plurality of voice packets in accordance with a protocol that differs from a format in which the secondary queue is configured to store the plurality of voice packets.
13. A method, comprising:
receiving a plurality of voice packets in a voice queue for a depacketizing engine, the voice queue comprising a primary queue and a secondary queue;
time stamping the plurality of voice packets in real time;
temporarily holding the plurality of voice packets in the secondary queue;
disassembling the plurality of voice packets in the secondary queue to generate a plurality of disassembled voice packets;
transmitting the plurality of disassembled voice packets from the primary queue to the secondary queue;
holding the plurality of disassembled voice packets in the primary queue; and
sequence numbering the plurality of disassembled voice packets in the primary queue.
14. The method of claim 13 , further comprising transforming the plurality of disassembled voice packets into a plurality of frames of digital voice samples.
15. The method of claim 14 , wherein the plurality of voice packets are associated with a data rate of 64 kb/s.
16. The method of claim 14 , the plurality of voice packets comprising 16-bit pulse-code-modulated (PCM) data.
17. The method of claim 13 , wherein the plurality of voice packets are associated with a data rate of 64 kb/s.
18. The method of claim 13 , wherein the plurality of voice packets comprise 16-bit pulse-code modulated (PCM) data.
19. The method of claim 13 , wherein the temporary holding of the plurality of voice packets in the secondary queue comprises temporarily storing the voice packets in the secondary queue in a protocol-particular format.
20. The method of claim 13 , wherein the temporary holding of the plurality of voice packets in the primary queue comprises storing the plurality of voice packets in the primary queue in a protocol-independent format.