This read-only value reports the GPRS QoS delay class that was actually negotiated with the network for this connection. An admin checks this against the requested delay class to see whether the carrier granted the desired latency tier, which matters directly for time-sensitive traffic riding the cellular link. For example, if the negotiated delay class comes back slower than what was requested for a VoIP-capable connection, the admin can anticipate higher call latency and investigate alternate connectivity if needed.