10:21:08.062169 fox.iptel.org.5060 > chachi.5060:  udp 484 (DF) [tos 0x10] 
10:21:08.322115 fox.iptel.org.5060 > chachi.5060:  udp 484 (DF) [tos 0x10] 
10:21:10.340443 fox.iptel.org.5060 > chachi.5060:  udp 484 (DF) [tos 0x10] 
10:21:14.380588 fox.iptel.org.5060 > chachi.5060:  udp 484 (DF) [tos 0x10] 
10:21:16.825802 chachi.5060 > fox.iptel.org.5060:  udp 558