Telnyx Texml - Ruby
Installation
gem install telnyxSetup
require "telnyx"
client = Telnyx::Client.new(
api_key: ENV["TELNYX_API_KEY"], # This is the default and can be omitted
)All examples below assume client is already initialized as shown above.
Error Handling
All API calls can fail with network errors, rate limits (429), validation errors (422), or authentication errors (401). Always handle errors in production code:
begin
result = client.messages.send_(to: "+13125550001", from: "+13125550002", text: "Hello")
rescue Telnyx::Errors::APIConnectionError
puts "Network error — check connectivity and retry"
rescue Telnyx::Errors::RateLimitError
# 429: rate limited — wait and retry with exponential backoff
sleep(1) # Check Retry-After header for actual delay
rescue Telnyx::Errors::APIStatusError => e
puts "API error #{e.status}: #{e.message}"
if e.status == 422
puts "Validation error — check required fields and formats"
end
endCommon error codes: 401 invalid API key, 403 insufficient permissions, 404 resource not found, 422 validation error (check field formats), 429 rate limited (retry with exponential backoff).
Important Notes
- Pagination: Use
.auto_paging_eachfor automatic iteration:page.auto_paging_each {|item| puts item.id}.
Fetch multiple call resources
Returns multiple call resources for an account. This endpoint is eventually consistent.
GET /texml/Accounts/{account_sid}/Calls
response = client.texml.accounts.calls.retrieve_calls("account_sid")
puts(response)Returns: calls (array[object]), end (integer), first_page_uri (string), next_page_uri (string), page (integer), page_size (integer), start (integer), uri (string)
Initiate an outbound call
Initiate an outbound TeXML call. Telnyx will request TeXML from the XML Request URL configured for the connection in the Mission Control Portal.
POST /texml/Accounts/{account_sid}/Calls — Required: To, From, ApplicationSid
Optional: AsyncAmd (boolean), AsyncAmdStatusCallback (string), AsyncAmdStatusCallbackMethod (enum: GET, POST), CallerId (string), CancelPlaybackOnDetectMessageEnd (boolean), CancelPlaybackOnMachineDetection (boolean), CustomHeaders (array[object]), DetectionMode (enum: Premium, Regular), FallbackUrl (string), MachineDetection (enum: Enable, Disable, DetectMessageEnd), MachineDetectionSilenceTimeout (integer), MachineDetectionSpeechEndThreshold (integer), MachineDetectionSpeechThreshold (integer), MachineDetectionTimeout (integer), PreferredCodecs (string), Record (boolean), RecordingChannels (enum: mono, dual), RecordingStatusCallback (string), RecordingStatusCallbackEvent (string), RecordingStatusCallbackMethod (enum: GET, POST), RecordingTimeout (integer), RecordingTrack (enum: inbound, outbound, both), SendRecordingUrl (boolean), SipAuthPassword (string), SipAuthUsername (string), SipRegion (enum: US, Europe, Canada, Australia, Middle East), StatusCallback (string), StatusCallbackEvent (enum: initiated, ringing, answered, completed), StatusCallbackMethod (enum: GET, POST), SuperviseCallSid (string), SupervisingRole (enum: barge, whisper, monitor), Texml (string), TimeLimit (integer), Timeout (integer), Trim (enum: trim-silence, do-not-trim), Url (string), UrlMethod (enum: GET, POST)
response = client.texml.accounts.calls.calls(
"account_sid",
application_sid: "example-app-sid",
from: "+13120001234",
to: "+13121230000"
)
puts(response)Returns: from (string), status (string), to (string)
Fetch a call
Returns an individual call identified by its CallSid. This endpoint is eventually consistent.
GET /texml/Accounts/{account_sid}/Calls/{call_sid}
call = client.texml.accounts.calls.retrieve("call_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(call)Returns: account_sid (string), answered_by (enum: human, machine, not_sure), caller_name (string), date_created (string), date_updated (string), direction (enum: inbound, outbound), duration (string), end_time (string), from (string), from_formatted (string), price (string), price_unit (string), sid (string), start_time (string), status (enum: ringing, in-progress, canceled, completed, failed, busy, no-answer), to (string), to_formatted (string), uri (string)
Update call
Update TeXML call. Please note that the keys present in the payload MUST BE formatted in CamelCase as specified in the example.
POST /texml/Accounts/{account_sid}/Calls/{call_sid}
call = client.texml.accounts.calls.update("call_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(call)Returns: account_sid (string), answered_by (enum: human, machine, not_sure), caller_name (string), date_created (string), date_updated (string), direction (enum: inbound, outbound), duration (string), end_time (string), from (string), from_formatted (string), price (string), price_unit (string), sid (string), start_time (string), status (enum: ringing, in-progress, canceled, completed, failed, busy, no-answer), to (string), to_formatted (string), uri (string)
Fetch recordings for a call
Returns recordings for a call identified by call_sid.
GET /texml/Accounts/{account_sid}/Calls/{call_sid}/Recordings.json
response = client.texml.accounts.calls.recordings_json.retrieve_recordings_json(
"call_sid",
account_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(response)Returns: end (integer), first_page_uri (uri), next_page_uri (string), page (integer), page_size (integer), previous_page_uri (uri), recordings (array[object]), start (integer), uri (string)
Request recording for a call
Starts recording with specified parameters for call identified by call_sid.
POST /texml/Accounts/{account_sid}/Calls/{call_sid}/Recordings.json
response = client.texml.accounts.calls.recordings_json.recordings_json("call_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(response)Returns: account_sid (string), call_sid (string), channels (enum: 1, 2), conference_sid (uuid), date_created (date-time), date_updated (date-time), duration (string | null), error_code (string | null), price (string | null), price_unit (string | null), sid (string), source (enum: StartCallRecordingAPI, StartConferenceRecordingAPI, OutboundAPI, DialVerb, Conference, RecordVerb, Trunking), start_time (date-time), track (enum: inbound, outbound, both), uri (string)
Update recording on a call
Updates recording resource for particular call.
POST /texml/Accounts/{account_sid}/Calls/{call_sid}/Recordings/{recording_sid}.json
response = client.texml.accounts.calls.recordings.recording_sid_json(
"6a09cdc3-8948-47f0-aa62-74ac943d6c58",
account_sid: "550e8400-e29b-41d4-a716-446655440000",
call_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(response)Returns: account_sid (string), call_sid (string), channels (enum: 1, 2), conference_sid (uuid), date_created (date-time), date_updated (date-time), duration (string | null), error_code (string | null), price (string | null), price_unit (string | null), sid (string), source (enum: StartCallRecordingAPI, StartConferenceRecordingAPI, OutboundAPI, DialVerb, Conference, RecordVerb, Trunking), start_time (date-time), track (enum: inbound, outbound, both), uri (string)
Request siprec session for a call
Starts siprec session with specified parameters for call identified by call_sid.
POST /texml/Accounts/{account_sid}/Calls/{call_sid}/Siprec.json
response = client.texml.accounts.calls.siprec_json("call_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(response)Returns: account_sid (string), call_sid (string), date_created (string), date_updated (string), error_code (string), sid (string), start_time (string), status (enum: in-progress, stopped), track (enum: both_tracks, inbound_track, outbound_track), uri (string)
Updates siprec session for a call
Updates siprec session identified by siprec_sid.
POST /texml/Accounts/{account_sid}/Calls/{call_sid}/Siprec/{siprec_sid}.json
response = client.texml.accounts.calls.siprec.siprec_sid_json(
"siprec_sid",
account_sid: "550e8400-e29b-41d4-a716-446655440000",
call_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(response)Returns: account_sid (string), call_sid (string), date_updated (string), error_code (string), sid (string), status (enum: in-progress, stopped), uri (string)
Start streaming media from a call.
Starts streaming media from a call to a specific WebSocket address.
POST /texml/Accounts/{account_sid}/Calls/{call_sid}/Streams.json
response = client.texml.accounts.calls.streams_json("call_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(response)Returns: account_sid (string), call_sid (string), date_updated (date-time), name (string), sid (string), status (enum: in-progress), uri (string)
Update streaming on a call
Updates streaming resource for particular call.
POST /texml/Accounts/{account_sid}/Calls/{call_sid}/Streams/{streaming_sid}.json
response = client.texml.accounts.calls.streams.streaming_sid_json(
"6a09cdc3-8948-47f0-aa62-74ac943d6c58",
account_sid: "550e8400-e29b-41d4-a716-446655440000",
call_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(response)Returns: account_sid (string), call_sid (string), date_updated (date-time), sid (string), status (enum: stopped), uri (string)
List conference resources
Lists conference resources.
GET /texml/Accounts/{account_sid}/Conferences
response = client.texml.accounts.conferences.retrieve_conferences("account_sid")
puts(response)Returns: conferences (array[object]), end (integer), first_page_uri (string), next_page_uri (string), page (integer), page_size (integer), start (integer), uri (string)
Fetch a conference resource
Returns a conference resource.
GET /texml/Accounts/{account_sid}/Conferences/{conference_sid}
conference = client.texml.accounts.conferences.retrieve("conference_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(conference)Returns: account_sid (string), api_version (string), call_sid_ending_conference (string), date_created (string), date_updated (string), friendly_name (string), reason_conference_ended (enum: participant-with-end-conference-on-exit-left, last-participant-left, conference-ended-via-api, time-exceeded), region (string), sid (string), status (enum: init, in-progress, completed), subresource_uris (object), uri (string)
Update a conference resource
Updates a conference resource.
POST /texml/Accounts/{account_sid}/Conferences/{conference_sid}
conference = client.texml.accounts.conferences.update("conference_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(conference)Returns: account_sid (string), api_version (string), call_sid_ending_conference (string), date_created (string), date_updated (string), friendly_name (string), reason_conference_ended (enum: participant-with-end-conference-on-exit-left, last-participant-left, conference-ended-via-api, time-exceeded), region (string), sid (string), status (enum: init, in-progress, completed), subresource_uris (object), uri (string)
List conference participants
Lists conference participants
GET /texml/Accounts/{account_sid}/Conferences/{conference_sid}/Participants
response = client.texml.accounts.conferences.participants.retrieve_participants(
"conference_sid",
account_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(response)Returns: end (integer), first_page_uri (string), next_page_uri (string), page (integer), page_size (integer), participants (array[object]), start (integer), uri (string)
Dial a new conference participant
Dials a new conference participant
POST /texml/Accounts/{account_sid}/Conferences/{conference_sid}/Participants
response = client.texml.accounts.conferences.participants.participants("conference_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(response)Returns: account_sid (string), call_sid (string), coaching (boolean), coaching_call_sid (string), conference_sid (uuid), end_conference_on_exit (boolean), hold (boolean), muted (boolean), status (enum: connecting, connected, completed), uri (string)
Get conference participant resource
Gets conference participant resource
GET /texml/Accounts/{account_sid}/Conferences/{conference_sid}/Participants/{call_sid_or_participant_label}
participant = client.texml.accounts.conferences.participants.retrieve(
"call_sid_or_participant_label",
account_sid: "550e8400-e29b-41d4-a716-446655440000",
conference_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(participant)Returns: account_sid (string), api_version (string), call_sid (string), call_sid_legacy (string), coaching (boolean), coaching_call_sid (string), coaching_call_sid_legacy (string), conference_sid (uuid), date_created (string), date_updated (string), end_conference_on_exit (boolean), hold (boolean), muted (boolean), status (enum: connecting, connected, completed), uri (string)
Update a conference participant
Updates a conference participant
POST /texml/Accounts/{account_sid}/Conferences/{conference_sid}/Participants/{call_sid_or_participant_label}
participant = client.texml.accounts.conferences.participants.update(
"call_sid_or_participant_label",
account_sid: "550e8400-e29b-41d4-a716-446655440000",
conference_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(participant)Returns: account_sid (string), api_version (string), call_sid (string), call_sid_legacy (string), coaching (boolean), coaching_call_sid (string), coaching_call_sid_legacy (string), conference_sid (uuid), date_created (string), date_updated (string), end_conference_on_exit (boolean), hold (boolean), muted (boolean), status (enum: connecting, connected, completed), uri (string)
Delete a conference participant
Deletes a conference participant
DELETE /texml/Accounts/{account_sid}/Conferences/{conference_sid}/Participants/{call_sid_or_participant_label}
result = client.texml.accounts.conferences.participants.delete(
"call_sid_or_participant_label",
account_sid: "550e8400-e29b-41d4-a716-446655440000",
conference_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(result)List conference recordings
Lists conference recordings
GET /texml/Accounts/{account_sid}/Conferences/{conference_sid}/Recordings
response = client.texml.accounts.conferences.retrieve_recordings("conference_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(response)Returns: end (integer), first_page_uri (string), next_page_uri (string), page (integer), page_size (integer), participants (array[object]), recordings (array[object]), start (integer), uri (string)
Fetch recordings for a conference
Returns recordings for a conference identified by conference_sid.
GET /texml/Accounts/{account_sid}/Conferences/{conference_sid}/Recordings.json
response = client.texml.accounts.conferences.retrieve_recordings_json("conference_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(response)Returns: end (integer), first_page_uri (uri), next_page_uri (string), page (integer), page_size (integer), previous_page_uri (uri), recordings (array[object]), start (integer), uri (string)
List queue resources
Lists queue resources.
GET /texml/Accounts/{account_sid}/Queues
page = client.texml.accounts.queues.list("account_sid")
puts(page)Returns: end (integer), first_page_uri (string), next_page_uri (string), page (integer), page_size (integer), queues (array[object]), start (integer), uri (string)
Create a new queue
Creates a new queue resource.
POST /texml/Accounts/{account_sid}/Queues
queue = client.texml.accounts.queues.create("account_sid")
puts(queue)Returns: account_sid (string), average_wait_time (integer), current_size (integer), date_created (string), date_updated (string), max_size (integer), sid (string), subresource_uris (object), uri (string)
Fetch a queue resource
Returns a queue resource.
GET /texml/Accounts/{account_sid}/Queues/{queue_sid}
queue = client.texml.accounts.queues.retrieve("queue_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(queue)Returns: account_sid (string), average_wait_time (integer), current_size (integer), date_created (string), date_updated (string), max_size (integer), sid (string), subresource_uris (object), uri (string)
Update a queue resource
Updates a queue resource.
POST /texml/Accounts/{account_sid}/Queues/{queue_sid}
queue = client.texml.accounts.queues.update("queue_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(queue)Returns: account_sid (string), average_wait_time (integer), current_size (integer), date_created (string), date_updated (string), max_size (integer), sid (string), subresource_uris (object), uri (string)
Delete a queue resource
Delete a queue resource.
DELETE /texml/Accounts/{account_sid}/Queues/{queue_sid}
result = client.texml.accounts.queues.delete("queue_sid", account_sid: "550e8400-e29b-41d4-a716-446655440000")
puts(result)Fetch multiple recording resources
Returns multiple recording resources for an account.
GET /texml/Accounts/{account_sid}/Recordings.json
response = client.texml.accounts.retrieve_recordings_json("account_sid")
puts(response)Returns: end (integer), first_page_uri (uri), next_page_uri (string), page (integer), page_size (integer), previous_page_uri (uri), recordings (array[object]), start (integer), uri (string)
Fetch recording resource
Returns recording resource identified by recording id.
GET /texml/Accounts/{account_sid}/Recordings/{recording_sid}.json
texml_get_call_recording_response_body = client.texml.accounts.recordings.json.retrieve_recording_sid_json(
"6a09cdc3-8948-47f0-aa62-74ac943d6c58",
account_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(texml_get_call_recording_response_body)Returns: account_sid (string), call_sid (string), channels (enum: 1, 2), conference_sid (uuid), date_created (date-time), date_updated (date-time), duration (string | null), error_code (string | null), media_url (uri), sid (string), source (enum: StartCallRecordingAPI, StartConferenceRecordingAPI, OutboundAPI, DialVerb, Conference, RecordVerb, Trunking), start_time (date-time), status (enum: in-progress, completed, paused, stopped), subresources_uris (object), uri (string)
Delete recording resource
Deletes recording resource identified by recording id.
DELETE /texml/Accounts/{account_sid}/Recordings/{recording_sid}.json
result = client.texml.accounts.recordings.json.delete_recording_sid_json(
"6a09cdc3-8948-47f0-aa62-74ac943d6c58",
account_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(result)List recording transcriptions
Returns multiple recording transcription resources for an account.
GET /texml/Accounts/{account_sid}/Transcriptions.json
response = client.texml.accounts.retrieve_transcriptions_json("account_sid")
puts(response)Returns: end (integer), first_page_uri (uri), next_page_uri (string), page (integer), page_size (integer), previous_page_uri (uri), start (integer), transcriptions (array[object]), uri (string)
Fetch a recording transcription resource
Returns the recording transcription resource identified by its ID.
GET /texml/Accounts/{account_sid}/Transcriptions/{recording_transcription_sid}.json
response = client.texml.accounts.transcriptions.json.retrieve_recording_transcription_sid_json(
"6a09cdc3-8948-47f0-aa62-74ac943d6c58",
account_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(response)Returns: account_sid (string), api_version (string), call_sid (string), date_created (date-time), date_updated (date-time), duration (string | null), recording_sid (string), sid (string), status (enum: in-progress, completed), transcription_text (string), uri (string)
Delete a recording transcription
Permanently deletes a recording transcription.
DELETE /texml/Accounts/{account_sid}/Transcriptions/{recording_transcription_sid}.json
result = client.texml.accounts.transcriptions.json.delete_recording_transcription_sid_json(
"6a09cdc3-8948-47f0-aa62-74ac943d6c58",
account_sid: "550e8400-e29b-41d4-a716-446655440000"
)
puts(result)Create a TeXML secret
Create a TeXML secret which can be later used as a Dynamic Parameter for TeXML when using Mustache Templates in your TeXML. In your TeXML you will be able to use your secret name, and this name will be replaced by the actual secret value when processing the TeXML on Telnyx side. The secrets are not visible in any logs.
POST /texml/secrets — Required: name, value
response = client.texml.secrets(name: "My Secret Name", value: "My Secret Value")
puts(response)Returns: name (string), value (enum: REDACTED)
List all TeXML Applications
Returns a list of your TeXML Applications.
GET /texml_applications
page = client.texml_applications.list
puts(page)Returns: active (boolean), anchorsite_override (enum: Latency, Chicago, IL, Ashburn, VA, San Jose, CA, Sydney, Australia, Amsterdam, Netherlands, London, UK, Toronto, Canada, Vancouver, Canada, Frankfurt, Germany), call_cost_in_webhooks (boolean), created_at (string), dtmf_type (enum: RFC 2833, Inband, SIP INFO), first_command_timeout (boolean), first_command_timeout_secs (integer), friendly_name (string), id (string), inbound (object), outbound (object), record_type (string), status_callback (uri), status_callback_method (enum: get, post), tags (array[string]), updated_at (string), voice_fallback_url (uri), voice_method (enum: get, post), voice_url (uri)
Creates a TeXML Application
Creates a TeXML Application.
POST /texml_applications — Required: friendly_name, voice_url
Optional: active (boolean), anchorsite_override (enum: Latency, Chicago, IL, Ashburn, VA, San Jose, CA, Sydney, Australia, Amsterdam, Netherlands, London, UK, Toronto, Canada, Vancouver, Canada, Frankfurt, Germany), call_cost_in_webhooks (boolean), dtmf_type (enum: RFC 2833, Inband, SIP INFO), first_command_timeout (boolean), first_command_timeout_secs (integer), inbound (object), outbound (object), status_callback (uri), status_callback_method (enum: get, post), tags (array[string]), voice_fallback_url (uri), voice_method (enum: get, post)
texml_application = client.texml_applications.create(friendly_name: "call-router", voice_url: "https://example.com")
puts(texml_application)Returns: active (boolean), anchorsite_override (enum: Latency, Chicago, IL, Ashburn, VA, San Jose, CA, Sydney, Australia, Amsterdam, Netherlands, London, UK, Toronto, Canada, Vancouver, Canada, Frankfurt, Germany), call_cost_in_webhooks (boolean), created_at (string), dtmf_type (enum: RFC 2833, Inband, SIP INFO), first_command_timeout (boolean), first_command_timeout_secs (integer), friendly_name (string), id (string), inbound (object), outbound (object), record_type (string), status_callback (uri), status_callback_method (enum: get, post), tags (array[string]), updated_at (string), voice_fallback_url (uri), voice_method (enum: get, post), voice_url (uri)
Retrieve a TeXML Application
Retrieves the details of an existing TeXML Application.
GET /texml_applications/{id}
texml_application = client.texml_applications.retrieve("1293384261075731499")
puts(texml_application)Returns: active (boolean), anchorsite_override (enum: Latency, Chicago, IL, Ashburn, VA, San Jose, CA, Sydney, Australia, Amsterdam, Netherlands, London, UK, Toronto, Canada, Vancouver, Canada, Frankfurt, Germany), call_cost_in_webhooks (boolean), created_at (string), dtmf_type (enum: RFC 2833, Inband, SIP INFO), first_command_timeout (boolean), first_command_timeout_secs (integer), friendly_name (string), id (string), inbound (object), outbound (object), record_type (string), status_callback (uri), status_callback_method (enum: get, post), tags (array[string]), updated_at (string), voice_fallback_url (uri), voice_method (enum: get, post), voice_url (uri)
Update a TeXML Application
Updates settings of an existing TeXML Application.
PATCH /texml_applications/{id} — Required: friendly_name, voice_url
Optional: active (boolean), anchorsite_override (enum: Latency, Chicago, IL, Ashburn, VA, San Jose, CA, Sydney, Australia, Amsterdam, Netherlands, London, UK, Toronto, Canada, Vancouver, Canada, Frankfurt, Germany), call_cost_in_webhooks (boolean), dtmf_type (enum: RFC 2833, Inband, SIP INFO), first_command_timeout (boolean), first_command_timeout_secs (integer), inbound (object), outbound (object), status_callback (uri), status_callback_method (enum: get, post), tags (array[string]), voice_fallback_url (uri), voice_method (enum: get, post)
texml_application = client.texml_applications.update(
"1293384261075731499",
friendly_name: "call-router",
voice_url: "https://example.com"
)
puts(texml_application)Returns: active (boolean), anchorsite_override (enum: Latency, Chicago, IL, Ashburn, VA, San Jose, CA, Sydney, Australia, Amsterdam, Netherlands, London, UK, Toronto, Canada, Vancouver, Canada, Frankfurt, Germany), call_cost_in_webhooks (boolean), created_at (string), dtmf_type (enum: RFC 2833, Inband, SIP INFO), first_command_timeout (boolean), first_command_timeout_secs (integer), friendly_name (string), id (string), inbound (object), outbound (object), record_type (string), status_callback (uri), status_callback_method (enum: get, post), tags (array[string]), updated_at (string), voice_fallback_url (uri), voice_method (enum: get, post), voice_url (uri)
Deletes a TeXML Application
Deletes a TeXML Application.
DELETE /texml_applications/{id}
texml_application = client.texml_applications.delete("1293384261075731499")
puts(texml_application)Returns: active (boolean), anchorsite_override (enum: Latency, Chicago, IL, Ashburn, VA, San Jose, CA, Sydney, Australia, Amsterdam, Netherlands, London, UK, Toronto, Canada, Vancouver, Canada, Frankfurt, Germany), call_cost_in_webhooks (boolean), created_at (string), dtmf_type (enum: RFC 2833, Inband, SIP INFO), first_command_timeout (boolean), first_command_timeout_secs (integer), friendly_name (string), id (string), inbound (object), outbound (object), record_type (string), status_callback (uri), status_callback_method (enum: get, post), tags (array[string]), updated_at (string), voice_fallback_url (uri), voice_method (enum: get, post), voice_url (uri)