sonusPktServProfileDInitPlayoutBufDelay 1.3.6.1.4.1.2879.2.2.2.1.13.2.1.15

This value defines the size of the initial playout buffer required to absorb the maximum expected data packet delay across the network. Range from 5 ms to 50 ms, in increments of 1 ms. The default value is 50 ms.