Unable to upload recording of more than 15 mins to AWS server

Hi There, I am trying to record a meeting and upload it to AWS server. The recording is in .m4a format and the upload request is a URLSession request. The following code works perfectly for recordings less than 15 mins. But then for greater recordings, it gets stuck Could you please help me out in this?

func startRecording() {
        let audioURL = getAudioURL()
        
        let audioSettings = [
            AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
            AVSampleRateKey: 12000,
            AVNumberOfChannelsKey: 1,
            AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue
        ]
        do {
            audioRecorder = try AVAudioRecorder(url: audioURL, settings: audioSettings)
            audioRecorder.delegate = self
            audioRecorder.record()
        } catch {
            finishRecording(success: false)
        }
    }

func uploadRecordedAudio{
            let _ = videoURL.startAccessingSecurityScopedResource()
            let input = UploadVideoInput(signedUrl: signedUrlResponse, videoUrl: videoURL, fileExtension: "m4a")
            self.fileExtension = "m4a"
            uploadService.uploadFile(videoUrl: videoURL, input: input)
            videoURL.stopAccessingSecurityScopedResource()
}

func uploadFileWithMultipart(endPoint: UploadEndpoint) {
        var urlRequest: URLRequest
        urlRequest = endPoint.urlRequest
        uploadTask = URLSession.shared.uploadTask(withStreamedRequest: urlRequest)
        uploadTask?.delegate = self
        uploadTask?.resume()
    }