Delaying the transmission of SIP Invites

Feicstur · Post by **Feicstur** » Tue May 30, 2023 6:52 am

1. Brekeke Product Name and Version: Brekeke SIP Server

2. Java version: OpenJDK 11.0.17

3. OS type and the version: Windows Server 2019

4. UA (phone), gateway or other hardware/software involved:

5. Your problem: I am using APNS in conjunction with SIP and running into issues with the APNS arriving before the SIP invite. This is preventing the prototype app we are using from matching the Invite to the Push Notification.

Is there a way to introduce a delay to sending the SIP Invite. Even milliseconds could improve the performance of the app.

redroof · Post by **redroof** » Tue May 30, 2023 1:34 pm

> issues with the APNS arriving before the SIP invite.

Do you want to get a SIP-INVITE before the APNS?

Feicstur · Post by **Feicstur** » Wed May 31, 2023 1:36 pm

I would want to get the APNS first

redroof · Post by **redroof** » Thu Jun 01, 2023 12:18 pm

Let you send the SIP-INVITE's Call-ID with APNS notification.
so the app can confirm whether it is a previously received call or not.
If it is a received call, the app should ignore that APNS notification.