This object records the actual payload size (in bytes) of voice packets on a VoIP call, which may differ from the configured codec rate due to negotiation during call setup. The payload size affects bandwidth consumption, latency, and packet loss resilience; larger payloads consume less overhead but increase latency, while smaller payloads reduce latency but increase overhead. Telecommunications engineers analyze this value to ensure voice calls are operating at expected bandwidth levels and to troubleshoot quality issues related to bandwidth allocation.