I have a panasonic p11(Android 4.1 jelly bean) mobile nd in this mobile acr call rocorder all calls but some recorded calls are not work (not play)
Not all phones support call recording. Remove any other call recording
apps, disable noise cancellation features of your phone,reboot your
phone and re-install ACR, set recording delay to 5 seconds and try
again. Also please try all recording formats.
If nothing works, set Audio Source to MIC in ACR settings and use call
recording with speaker