This is a read-write integer specifying the voice payload sample size, in bytes, that the configured coder should produce, where each coder sample yields 10 bytes and a value of 0 means the coder should use its own default payload size. An admin tunes this to control packetization granularity for this peer's voice traffic, and needs to be aware the router rounds any requested value down to the nearest valid multiple. For example, requesting a value like 25 on this object would actually be rounded down to 20 bytes since only multiples of 10 are valid sample sizes.