This sets the power level of the low-frequency signaling component for outgoing calls, and per the MIB, if ccasGCnfOutCallPowerTwist is set to 0, this same value also determines the high-frequency component's power. This dual role means changing this object without checking the twist setting can have a broader effect than intended; on a trunk with zero twist configured, adjusting this one value actually moves both tone frequencies together rather than just the low one. With ccasGCnfOutCallPowerTwist at 0 and this object set to -8 dBm, both the high- and low-frequency outgoing tones would be transmitted at -8 dBm; changing this value alone would shift both simultaneously.