This read-only value, in milliseconds, reports the maximum end-to-end transfer delay actually negotiated for this UMTS QoS profile, ranging from 1 to 4000 ms, with 0 meaning the subscribed delay bound applies. An admin monitoring latency-sensitive traffic over a 3G WAN link checks this to see whether the carrier granted a tighter or looser delay bound than requested, since a higher negotiated delay directly affects real-time application performance. For example, if a VoIP-capable branch router requested a 100ms bound but this object reports 4000ms negotiated, the admin knows the cellular network could not guarantee low latency and should expect call quality issues.