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Bug #3411

3G voice broken, CS RAB Assignment is not working

Added by neels 5 months ago. Updated 3 months ago.

Status:
Resolved
Priority:
Normal
Assignee:
Target version:
-
Start date:
07/23/2018
Due date:
% Done:

100%

Spec Reference:

Description

Quickly testing a 3G setup on current master, I see signalling is working, but voice RAB Assignment fails.
I see osmo-mgw saying:

20180723172416621 DRTP ERROR mgcp_network.c:835 endpoint:0x0 data from wrong address: 192.168.0.124, expected: 0.0.0.0
20180723172416621 DRTP ERROR mgcp_network.c:839 endpoint:0x0 packet tossed

This is the IuUP Initialization message that we should respond to with an IuUP Initialization ACK.

a) Apparently we are no longer telling the osmo-mgw the femto cell's IP address on time.

b) AFAICT we still have that IuUP hack in osmo-mgw to patch the looped back IuUP Initialization to an IuUP Initialization Ack, but the proper implementation is asked for in #2459 / #1937


Related issues

Related to OsmoMGW - Feature #2459: remove nano3G IuUP "Initialization ACK" hack when IuUP proxy is in placeNew2017-02-062017-02-06

Related to OsmoMGW - Feature #1937: Implement way how to handle IuUP on RTP endpointsNew2017-02-032017-02-03

History

#1 Updated by neels 5 months ago

  • Related to Feature #2459: remove nano3G IuUP "Initialization ACK" hack when IuUP proxy is in place added

#2 Updated by neels 5 months ago

  • Related to Feature #1937: Implement way how to handle IuUP on RTP endpoints added

#3 Updated by neels 5 months ago

  • Status changed from New to In Progress
  • Assignee set to neels
  • % Done changed from 0 to 90

I am able to get 3G voice working with yet another one of our mad IuUP hacks: https://gerrit.osmocom.org/#/c/osmo-mgw/+/10119

#4 Updated by neels 4 months ago

patch still waiting for CR on gerrit

#5 Updated by neels 3 months ago

  • Status changed from In Progress to Resolved
  • % Done changed from 90 to 100

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