CM: External Inbound calls on VPN phone faces one way audio issues

SOLN293811 | Version: 6.0 | Published: 07/29/2016 | Updated: 04/22/2020

Available To: Customer, Partner, Internal

Categories: Avaya Aura® Communication Manager, Break/Fix, Maintenance, Troubleshooting

Details

Whenever calls received on VPN phones they are facing one way audio issues.

Case2:

Operating system: Linux 2.6.18-409.AV1xen i686 i686
Built: Mar 29 21:52 2016

             Contains: 03.0.141.0
        CM Reports as: R016x.03.0.141.0
    CM Release String: vcm-016-03.0.141.0
     Publication Date: 04 October 2012

UPDATES:
Update ID Status Type Update description
------------------------------- ------------ ------- ---------------------------
03.0.141.0-23383 activated cold 6.3.115.1-SP115

KERNEL-2.6.18-409.AV1 activated cold KERNEL-KSP02

Platform/Security ID Status Type Update description
------------------------------- ------------ ------- ---------------------------
PLAT-rhel5.3-3020 activated cold RHEL5.3-SSP307

Messaging ID Status Type Update description
------------------------------- ------------ ------- ---------------------------

CM Translation Saved: 2017-12-01 00:15:36

CM License Installed: 2017-11-15 12:03:44

CM Memory Config: Large

Problem Clarification

All inbound calls coming to VPN phone registered in NR1 do not get RTP from media gateway in NR 8.

Case2:

Calls are routing to SIP trunk and the shuffling has not been enabled, enabled the shuffling temporarily the issue got resolved but again the issue continues.

Case 3:

All inbound and outbound call to the VPN user are having one-way audio issue, customer is using two different 96XX series phone. In which one is having issue and other is not.

Solution