Something

No.     Time        Source                Destination           Protocol Info
    269 28.524287   192.168.1.103         192.168.1.6           IAX2     Mini packet, source call# 28220, timestamp 160ms, Raw mu-law data (G.711)

Frame 269 (206 bytes on wire, 206 bytes captured)
Ethernet II, Src: AsustekC_d4:9f:71 (00:17:31:d4:9f:71), Dst: Intel_b5:30:c9 (00:11:11:b5:30:c9)
Internet Protocol, Src: 192.168.1.103 (192.168.1.103), Dst: 192.168.1.6 (192.168.1.6)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
    Total Length: 192
    Identification: 0x0000 (0)
    Flags: 0x04 (Don't Fragment)
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0xb66f [correct]
    Source: 192.168.1.103 (192.168.1.103)
    Destination: 192.168.1.6 (192.168.1.6)
User Datagram Protocol, Src Port: 4569 (4569), Dst Port: 4569 (4569)
Inter-Asterisk eXchange v2
Data (160 bytes)

0000  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0010  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0020  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0030  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0040  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0050  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0060  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0070  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0080  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................
0090  ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff   ................