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Troubleshoot Helper

Fragment​

Does the Troubleshoot Helper show you log entries that begin with Fragment?

Fragmented SIP-INVITE datagrams may be blocked by our systems for security reasons. To avoid having your SIP device blocked, your SIP-INVITE datagram should not exceed a certain size.

As a first step, reduce the offered audio codecs on the affected SIP device to the following three codecs: G722, G711a (PCMA), G711u (PCMU)

The following example helps you interpret the log.

Fragment: 2021/11/02 08:22:40 CET SIP_Request: INVITE sip:0442005000@business.voipgateway.org;user=phone SIP/2.0 From_username: 41441234567 To_username: 0442005000 Call_ID: "3d4da03de780610194a9009033410dd3@662"
Fragment: 2021/11/02 08:28:44 CET SIP_Request: INVITE sip:0442005000@business.voipgateway.org;user=phone SIP/2.0 From_username: 41441234567 To_username: 0442005000 Call_ID: "171e6ea9e8806101a7a9009033410dd3@665"

The affected device is using the account 41441234567 with the registrar business.voipgateway.org. An attempt to make a call or initiate a call to the destination number 0442005000 was made twice.

  • SIP_Request: INVITE Call or call attempt (with too much content)
  • SIP_Request: OPTIONS If your device is configured with BLF, you can ignore this log entry.