Symptom
T38 Fax failure due to RTCP/RTP media inactivity timer expiration on CUBE Enterprise when media inactivity commands are configured.
Sample:
!
ip rtcp report interval 3000
!
gateway
media-inactivity-criteria all
timer receive-rtcp 5
timer receive-rtp 1200
!
"voice iec syslog" error
Apr 10 17:28:00.679: %VOICE_IEC-3-GW: SIP: Internal Error (RTP Inactivity Error): IEC=1.1.185.7.8.0 on callID 7691 GUID=418661C73C1B11E8A243F85002AB096B
Conditions
IOS-XE, CUBE Enterprise, CUBE High Availability
Workaround
1. Disable all media inactivity timers (RTP-RTCP)
!
conf t
no gateway
no ip rtcp report interval
!
2. Increase the timers to be longer than the fax. i.e 8 hours.
!
ip rtcp report interval 60000
!
gateway
media-inactivity-criteria all
timer receive-rtcp 480
timer receive-rtp 28800
!
Further Problem Description
