I just installed Wireshark 1.4 on WinXP. Under Telephony, VoIP Calls, the GRAPH button has been replaced by a FLOW button. The ladder diagram produced by the FLOW button includes the SIP and RTP, but not the T.38. How can I make the ladder diagram display the T.38 as in previous releases of Wireshark?

This sample has 352 T.38 packets, comprising an entire fax call:

|Time     | 12.40.234.2                           |

|         |                   | 12.20.15.34       |                  

|0.000    |         INVITE SDP ( g729 g711U telephone-event X-nt-i...req)          |SIP From: "BCM450 FAX"<sip:anonymous@xxxxxxxxxxx To:<sip:17322759486@xxxxxxxxxxx

|         |(5060)   ------------------>  (5060)   |

|0.050    |         100 Trying|                   |SIP Status

|         |(5060)   <------------------  (5060)   |

|2.041    |         180 Ringing SDP ( g729 telephone-event)          |SIP Status

|         |(5060)   <------------------  (5060)   |

|2.041    |         RTP (g729)                    |RTP Num packets:507  Duration:23.360s SSRC:0xD5D81350

|         |(28000)  <------------------  (16604)  |

|2.092    |         RTP (g729)                    |RTP Num packets:168  Duration:8.499s SSRC:0x4A0BC4D1

|         |(28000)  ------------------>  (16604)  |

|10.607   |         200 OK SDP ( g729 telephone-event)          |SIP Status

|         |(5060)   <------------------  (5060)   |

|10.611   |         RTP (g729)                    |RTP Num packets:308  Duration:11.799s SSRC:0x4A0BC4D1

|         |(28000)  ------------------>  (16604)  |

|10.619   |         ACK       |                   |SIP Request

|         |(5060)   ------------------>  (5060)   |

|25.352   |         INVITE SDP ( t38)             |SIP Request

|         |(5060)   <------------------  (5060)   |

|25.362   |         100 Trying|                   |SIP Status

|         |(5060)   ------------------>  (5060)   |

|25.403   |         200 OK SDP ( t38)             |SIP Status

|         |(5060)   ------------------>  (5060)   |

|25.470   |         ACK       |                   |SIP Request

|         |(5060)   <------------------  (5060)   |

|47.896   |         BYE       |                   |SIP Request

|         |(5060)   ------------------>  (5060)   |

|47.943   |         200 Ok    |                   |SIP Status

|         |(5060)   <------------------  (5060)   |

Harvey S. Cohen

AT&T Labs, Middletown, NJ

Mobile +1-908-768-5833

Office +1-732-420-4099