Hi,
DP750 Problem with SIP over TCP missing ACK at 200 OK:
====> TRANSPORT TCP DP750 <====
All calls with TCP transport are cut in 32 seconds, in which it is observed that the 200 OK ACK is not received by the DP750.
Captures are attached:
- It can be observed in captura1_1.png the absence of the ACK (capture made on the DP750 itself).
- Detail of the INVITE in captura1_2.png.
====> TRANSPORT UDP DP750 <====
When the transport is configured in UDP, the calls do not fail, there is an ACK from the DP750.
Captures are attached:
- Captura2_1.png and Captura2_2.png
====> TRANSPORT TCP ATCOM <====
If I use another manufacturer brand, in this case ATCOM, the operation is correct:
Captures are attached:
- Captura3_1.png and Captura3_2.png
Is this a bug in the SIP over TCP stack implementation on your DP750?
Or really, is there an option to define in the DP750 station, which I don’t see.
All the best,