/telnyx-sip-javascript

name: telnyx-sip-javascript
description: >-
  Configure SIP trunking connections and outbound voice profiles. Use when
  connecting PBX systems or managing SIP infrastructure. This skill provides
  JavaScript SDK examples.
metadata:
  author: telnyx
  product: sip
  language: javascript
  generated_by: telnyx-openapi-pipeline

<!-- Auto-generated from Telnyx OpenAPI specs. Do not edit. -->

Telnyx Sip - JavaScript

Installation

npm install telnyx@6.74.2

Setup

import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: process.env['TELNYX_API_KEY'], // This is the default and can be omitted
  publicKey: process.env['TELNYX_PUBLIC_KEY'], // Required for client.webhooks.unwrap() (webhook verification)
});

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:

try {
  const result = await client.messages.send({ to: '+13125550001', from: '+13125550002', text: 'Hello' });
} catch (err) {
  if (err instanceof Telnyx.APIConnectionError) {
    console.error('Network error — check connectivity and retry');
  } else if (err instanceof Telnyx.RateLimitError) {
    // 429: rate limited — wait, then retry the request (bounded exponential backoff)
    const retryAfter = err.headers?.['retry-after'] || 1;
    await new Promise(r => setTimeout(r, retryAfter * 1000));
    // ...retry the call here (give up after a few attempts)
  } else if (err instanceof Telnyx.APIError) {
    console.error(`API error ${err.status}: ${err.message}`);
    if (err.status === 422) {
      console.error('Validation error — check required fields and formats');
    }
  }
  throw err; // Re-throw: a failed request must never look like success to the caller
}

Common 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:** List methods return an auto-paginating iterator. Use `for await (const item of result) { ... }` to iterate through all pages automatically.

List all Access IP Ranges

Retrieve a paginated list of access IP ranges configured on your account.

`GET /access_ip_ranges`

// Automatically fetches more pages as needed.
for await (const accessIPRange of client.accessIPRanges.list()) {
  console.log(accessIPRange.id);
}

Returns: `cidr_block` (string), `created_at` (date-time), `description` (string), `id` (string), `status` (enum: pending, added), `updated_at` (date-time), `user_id` (string)

Create new Access IP Range

Create a new access IP range on your account.

`POST /access_ip_ranges` — Required: `cidr_block`

Optional: `description` (string)

const accessIPRange = await client.accessIPRanges.create({ cidr_block: '203.0.113.0/24' });

console.log(accessIPRange.id);

Returns: `cidr_block` (string), `created_at` (date-time), `description` (string), `id` (string), `status` (enum: pending, added), `updated_at` (date-time), `user_id` (string)

Delete access IP ranges

Delete an access IP range from your account.

`DELETE /access_ip_ranges/{access_ip_range_id}`

const accessIPRange = await client.accessIPRanges.delete('550e8400-e29b-41d4-a716-446655440000');

console.log(accessIPRange.id);

Returns: `cidr_block` (string), `created_at` (date-time), `description` (string), `id` (string), `status` (enum: pending, added), `updated_at` (date-time), `user_id` (string)

List connections

Returns a list of your connections irrespective of type.

`GET /connections`

// Automatically fetches more pages as needed.
for await (const connectionListResponse of client.connections.list()) {
  console.log(connectionListResponse.id);
}

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), `connection_name` (string), `created_at` (string), `id` (string), `outbound_voice_profile_id` (string), `record_type` (string), `tags` (array[string]), `updated_at` (string), `webhook_api_version` (enum: 1, 2), `webhook_event_failover_url` (uri), `webhook_event_url` (uri)

Count connections

Returns the number of connections associated with the authenticated user, grouped by connection type, together with the connection limits that apply to the user. Forward-only connections are excluded from the counts.

`GET /connections/count`

const response = await client.connections.retrieveCount();

console.log(response.data);

Returns: `counts` (object), `limits` (object), `record_type` (string)

Retrieve a connection

Retrieves the high-level details of an existing connection. To retrieve specific authentication information, use the endpoint for the specific connection type.

`GET /connections/{id}`

const connection = await client.connections.retrieve('550e8400-e29b-41d4-a716-446655440000');

console.log(connection.data);

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), `connection_name` (string), `created_at` (string), `id` (string), `outbound_voice_profile_id` (string), `record_type` (string), `tags` (array[string]), `updated_at` (string), `webhook_api_version` (enum: 1, 2), `webhook_event_failover_url` (uri), `webhook_event_url` (uri)

List credential connections

Returns a list of your credential connections.

`GET /credential_connections`

// Automatically fetches more pages as needed.
for await (const credentialConnection of client.creden