For what it's worth - I monitored my Vonage call today, which lasted 54 minutes: Ethernet0/1 Input Output Protocol Packet Count Packet Count Byte Count Byte Count 5 minute bit rate (bps) 5 minute bit rate (bps) ------------------------ ------------------------ ------------------------ rtp 109086 108959 18971788 18958866 0 0 Or about 20 mbytes/hour, 33 packets per second. That's on Vonage's middle phone quality setting, (50kbit), with the Motorola ATA... Chuck Church Lead Design Engineer CCIE #8776, MCNE, MCSE Netco Government Services - Design & Implementation 1210 N. Parker Rd. Greenville, SC 29609 Home office: 864-335-9473 Cell: 703-819-3495 cchurch@netcogov.com PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D