Known Cisco bugs affecting recording reliability

Owned by Kiss, Mate
May 24, 2022
3 min read

 

Cisco CallManager

Intermittent secure recording

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtu06601&from=summary
Symptom: Secure recording failing intermittent with cause 57 403 forbidden
Work around: Put the agent phones on the same node as the sip trunk
First found: 8.5(1) (we experienced the same issue with 8.0 branch, upgrade to 9.0.1 solved it at customer)
Fixed: 8.6(2.98000.116), 8.6(2.98000.46), 9.0(1.10000.15), 9.0(1.10000.37)

Recording Tone options on phone page for 69x1 phones do not work

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtz31279&from=summary
Symptom: Recording Tone parameters missing on phone page for 7911.
Work around: n/a
First found: 9.1(1)
Fixed: 9.0(0.98000.41), 9.0(0.98000.158), 8.6(3.98000.199), 8.6(4.10000.15), 9.0(1.10000.15), 9.0(1.10000.37)

Call Redirect can fail when Call Recording Profile is enabled

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtq87736&from=summary
Symptom: When incoming call to UCCX being queue as all agents are busy, UCCX will record a call back number. If at a later time, an agent becomes available, UCCX will then call that agent, when agent answer the call, he will hear a menu prompt to press 1 to call the call back number, after that the UCCX will then call the call back number, currently after the agent press 1, the call get disconnected and it seems to mostly affect agent using extension mobility.
Work around: Remove Call Recording Profile.
First found: 7.1(2.31900.1), 8.5(1.11001.35)
Fixed: 8.6(1.98000.37), 8.6(1.98000.82), 8.5(1.12025.1), 8.0(3.23034.1), 8.6(1.21002.1), 8.6(2.10000.30), 7.1(5.34070.2)

Unable to record voice for SIP calls

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCty15458&from=summary
Symptom: Unable to record voice for some SIP calls. The issue will be encountered only during redirects over a SIPTrunk which looks at SIP URL in the Invite when the name/number got modified from the DA response after redirect request.
Work around: n/a
First found: 8.6(2)
Fixed: 9.0(0.98000.16), 9.0(0.99999.2242), 9.0(0.98000.55), 7.1(5.34091.1), 8.5(1.14060.1), 8.6(2.21900.5), 8.6(2.21021.1), 7.1(5.34900.7), 8.0(3.24047.1), 9.0(1.10000.15), 8.6(4.98000.10), 9.0(1.10000.37)

 

Cisco phone firmwares (firmware versions!)

Intermittent recording (69xx/79xx)

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtx84429&from=summary
Symptom: Calls to 3rd party Recording Server via BIB are failing intermittently. CCM SDI Traces will show CUCM sending a BYE to the Recording Server with cause=47.
Work around: n/a
First found: 9.2.1 and higher
Fixed: 9.2(3)ES3, 9.2(3)MN1.16, 9.3(1)CT1.50 (we have experience with 9.3.1SR1, and can confirm it is fixed)

6921 sends one RTP stream to recorder, when sRTP is expected

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtq54881&from=summary
Symptom: 6921 sends one RTP stream to recorder, when sRTP is expected. 9.2.1 firmware fixes the CSCtj38017 - SSRC field in RTP Stream Packet is always zero. However, the secure recording stream functionality is broken in 9.2.1 firmware. Downgrading to lower firmware version (9.1.1) would help in not running into the secure recording stream issue. However, the 6921 phone will be susceptible to CSCtj38017.
Work around: n/a
First found: 9.2(1)
Fixed: 9.2(1)SR1

Caller gets one-way audio after hold/resume when conf with recording

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtq76447&from=summary
Symptom: Agents will get a one way audio after resume calls on hold/transfer This defect happen when RTL is act as call recoding agent and playing MMOH using multicast address. When customer resume this call. CUCM send skinny message StationStopMulticastMediaReceptionMessage to close MMOH media channel. But RTL call control do not clear multicast address properly. When CUCM trigger RTL to open RX/TX unicast media channel with customer. Call control open RX channel using the previous multicast address. Therefore, RTL cannot receive RX packets properly and play it out.
Work around: n/a
First found: 9.1(1.100)
Fixed: 9.2(2), 9.2(1)SR1

Recording Tone options on phone page for 69x1 phones do not work

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtq54881&from=summary
Symptom: On the device phone page, enabling Recording Tone should play a tone for every call regardless of whether it is recorded or not. This does not play. Enabling the Recording Tone via Service Parameters does work for recorded calls, but the Recording Tone Volume options on the phone config page do not apply successfully.
Work around: n/a
First found: 9.1(1)
Fixed: 9.2(1)

6921 SCCP/SIP - Cannot turn off Recording Tone notification

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCua57846&from=summary
Symptom: Cannot disable the Recording Tone notification:
Work around: n/a
First found: 9.3(2)
Fixed: 9.3(1)ES1, 9.3(1)ES4