for anyone wanting to see what ports the voice connection runs on:
Internet Protocol, Src: 66.162.X.X (66.162.X.X), Dst: 192.168.1.21
(192.168.1.21)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x80 (DSCP 0x20: Class Selector 4; ECN: 0x00)
Total Length: 116
Identification: 0x462e (17966)
Flags: 0x00
Fragment offset: 0
Time to live: 112
Protocol: UDP (0x11)
Header checksum: 0xf59b [correct]
Source: 66.162.X.X (66.162.X.X)
Destination: 192.168.1.21 (192.168.1.21)
User Datagram Protocol, Src Port: 37897 (37897), Dst Port: 1142 (1142)
Source port: 37897 (37897)
Destination port: 1142 (1142)
Length: 96
Checksum: 0xeaaf [correct]
Data (88 bytes)