Record

The <Record> verb records the caller’s audio, returning the URL of a file containing the audio recording.

Record Attributes

Name	Allowed Values	Default Value
action	relative or absolute URL	current document URL
method	GET, POST	POST
timeout	positive integer	5
finishOnKey	any digit, #, * or -1 to disable	#
maxLength	integer greater than 1 with the number of seconds to wait	3600 (1 hour)
playBeep	true, false	true

Name

Allowed Values

Default Value

action

relative or absolute URL

current document URL

method

GET, POST

POST

timeout

positive integer

finishOnKey

any digit, #, * or -1 to disable

maxLength

integer greater than 1 with the number of seconds to wait

3600 (1 hour)

playBeep

true, false

true

action. The 'action' attribute takes an absolute or relative URL as a value. When recording is finished CPaaS will make a GET or POST request to this URL including the parameters below. If no 'action' is provided, <Record> will default to requesting the current document’s URL. After making this request, CPaaS will continue the current call using the RCML received in your response. Any RCML verbs occuring after a <Record> are unreachable. There is one exception: if CPaaS receives an empty recording, it will not make a request to the 'action' URL. The current call flow will continue with the next verb in the current RCML document.

Request Parameters

Parameter	Description
RecordingUrl	The URL of the recorded audio.
RecordingDuration	The time duration of the recorded audio.
Digits	The digits the caller pressed, excluding the finishOnKey digit.

Parameter

Description

RecordingUrl

The URL of the recorded audio.

RecordingDuration

The time duration of the recorded audio.

Digits

The digits the caller pressed, excluding the finishOnKey digit.

method. The 'method' attribute takes the value 'GET' or 'POST'. This tells CPaaS whether to request the URL via HTTP GET or POST.
timeout. The 'timeout' attribute tells CPaaS to end the recording after a number of seconds of silence has passed.
finishOnKey. The 'finishOnKey' attribute lets you choose a set of digits that end the recording when entered. For example, if you set 'finishOnKey' to '#' and the caller presses '#', CPaaS will immediately stop recording and submit 'RecordingUrl', 'RecordingDuration', and the '#' as parameters in a request to the 'action' URL. The allowed values are the digits 0-9, '#', '*' and '-1'. The default value is '1234567890*#' which means that any key will end the recording. The value '-1' is a special value that can be used to disable finishOnKey and never stop recording on a DTMF. Unlike <Gather>, you may specify more than one character as a 'finishOnKey' value but '-1' must be used alone.
maxLength. The 'maxLength' attribute lets you set the maximum length for the recording in seconds.
playBeep. The 'playBeep' attribute allows you to toggle between playing a sound before the start of a recording.
media. The 'media' attribute defines what kind of information will be stored. Choose 'audio_only' so store a WAV file containing audio.
Nesting. The <Record> verb can not have any other verbs or nouns nested.

Media Server Audio File Format

Technical Specification and Capacity

The CPaaS Media Server is capable of

Media and Codecs:

G711 (a-Law, u-Law)
GSM
Linear PCM(L16)
G729
DTMF(RFC 2833, INBAND)

Media Files:

Wav (Sample rate 8000Hz, bit rate of 16, Mono)
GSM

Examples

For an example of how to use the <Record> verb see below.

<Response>
 <Record maxLength="30"/>
</Response>

Legal Factors when Recording with CPaaS

If you choose to record voice calls, you need to comply with various laws and regulations, including those regarding obtaining consent to record (such as California’s Invasion of Privacy Act and similar laws in other jurisdictions). Additional information on the legal implications of call recording can be found here. We recommend that you consult with your legal department to make sure you comply with all applicable laws in connection with communications you record or store using CPaaS.