Network out of order Error

AhmedYassine

New Member
Sep 29, 2025
22
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Hi,

I received the following error from my provider. Is there any configuration required on FusionPBX to avoid this issue, or should the configuration be handled on the provider’s side?
Code:
SIP/2.0 500 Server Internal Error

Via: SIP/2.0/UDP 172.16.60.60;branch=z9hG4bK70NFB9vK9X5je;rport=5060

Call-ID: cbaa06ac-c4a0-123f-4a87-005056b134a2

From: "1001"<sip:FreeSWITCH@172.25.50.50>;tag=tNa5p3erS3yge

To: <sip:0770777777@172.25.50.50>;tag=ze0ty0mf-CC-1009-OFC-34

CSeq: 114520732 INVITE

Reason: Q.850;cause=38;text="Network out of order"

Content-Length: 0
Could you please advise?