Hi folks, I want to send out another shout regarding an on-going issue in the DC area. We've got excessive audio delay between our voip phones and cell phones. Packet specs (loss, jitter, etc) are fine, ping times for everything rock. Specifically, these rate centers are involved: DALE CITY HERNDON MANASSAS WSNGTNZN08 WSNGTNZN17 but NOT this nearby one: TRIANGLE Here are some of the voip NPA/NXXs involved: 703647 703880 703508 703647 240283 The issue affects any cell in the area. All our test calls are local; the cell phone is in the same building as the voip phone. The cell phone has and has strong signal. We've measured audio latency of up to 550ms; it is just impossible to hold a conversation. In all cases: 1. VOIP-to-CELL calls are slower than CELL-to-VOIP 2. 3G is slower than GSM 3. PSTN-VOIP calls are good 4. PSTN-CELL calls are good 5 Only VOIP-CELL calls are bad Anyone got any issues in the DC area? Would your users report this kind of problem? The DC area comes in near the bottom of the list on most of the "bad cell phone area" studies, so most cell users there have had tolerance of this sort of thing beat into them over the years. Thanks, David