Q&A
Asterisk incoming calls fail with "Network busy"
Aldevinas Katkus
12-10-20
Operating system: macOS
Asterisk 18.
We have 2 sip providers set up and I noticed that some incoming calls randomly fail with Network busy on the caller side while I cannot see that the incoming call on the Asterisk side.
Anyone faced with this?
Is this a provider problem or asterisk problem?
Reply
Brittany McGrath
12-14-20
Hello,

We will look into this and get back to you soon.

Thank you.
Reply
Aldevinas Katkus
12-16-20
Created byBrittany McGrath19:24 14 Dec 2020
Hello, We will look into this and get back to you soon. Thank you.
That day many government sites were under a cyber attack. The next day the problem was gone.
Our SIP provider haven't commented this.
Reply
Brittany McGrath
12-18-20
Hi Aldevinas,

Thank you for the update that the issue has now gone.

Reply
Leave Comment
You can subscribe to notifications for this post by selecting the 'star' icon on the top right corner of the post.
Back to the list
Latest Posts
Received External E-mail without proper attachments
Piotr Wycichowski
Hi, Some incoiming external e-mails, like invitation for scheduled Zoom meeting, comes with special attachement .ics to create an event in calendars. When such e-mail is received by SERP mail syste...
15:43 12 Sep 2025
Use External Mail Software
Piotr Wycichowski
Hi, I checked option "Use External Mail Software" in setting "Mail and Conferences Settings" in module "Mail and Conferences". When I create an invoice email I have a ...
17:38 8 Aug 2025