0x0101 RTP Payload Size (VDAC-ONE)

By changing the multiple of the payload size, you can configure how much encoded PCM data a packet contains.

Example: For G.711, a 160-byte payload of encoded PCM data is sent at the G.711 Basic Packet Rate of every 20 milliseconds. But if you change the multiple for G.711 to 2x, then a 320-byte payload is sent every 40 milliseconds.

In effect, changing the multiple also changes the throughput available over an Ethernet network. Larger packets create greater network delay overall, but they use the Ethernet bandwidth more efficiently. Smaller packets may use the Ethernet bandwidth less efficiently, but they may provide better voice quality.

Used in:
0x1E Generic PPL ICB in:
Resource Attribute Query message
Resource Attribute Configure message

Byte | Description
0, 1 | Tag 0x0101 RTP Payload Size
2, 3 | Length 0x0001
4 | Value[0] Multiple of the basic packet rate. 0x01(Default) 0x02 0x03 0x04 0x05 0x06 0x07 0x08

See Pulse Code Modulation.
The protocol used in most local area PC networks. Typically, most Ethernet networks support data transmission speeds up to 10 Mbps, but 100 Mbps is also possible.
See Programmable Protocol Language.
See Information Control Block.
Real-Time Transport Protocol. Supports transport of real-time data like interactive voice and video over packet-switched networks.