Telnyx Numbers Services Python

---
name: telnyx-numbers-services-python
description: >-
  Configure voicemail, voice channels, and emergency (E911) services for your
  phone numbers. This skill provides Python SDK examples.
metadata:
  author: telnyx
  product: numbers-services
  language: python
  generated_by: telnyx-openapi-pipeline
---

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

# Telnyx Numbers Services - Python

## Installation

```bash
pip install telnyx
```

## Setup

```python
import os
from telnyx import Telnyx

client = Telnyx(
    api_key=os.environ.get("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:

```python
import telnyx

try:
    result = client.messages.send(to="+13125550001", from_="+13125550002", text="Hello")
except telnyx.APIConnectionError:
    print("Network error — check connectivity and retry")
except telnyx.RateLimitError:
    # 429: rate limited — wait and retry with exponential backoff
    import time
    time.sleep(1)  # Check Retry-After header for actual delay
except telnyx.APIStatusError as e:
    print(f"API error {e.status_code}: {e.message}")
    if e.status_code == 422:
        print("Validation error — check required fields and formats")
```

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 item in page_result:` to iterate through all pages automatically.

## List your voice channels for non-US zones

Returns the non-US voice channels for your account. voice channels allow you to use Channel Billing for calls to your Telnyx phone numbers. Please check the Telnyx Support Articles section for full information and examples of how to utilize Channel Billing.

`GET /channel_zones`

```python
page = client.channel_zones.list()
page = page.data[0]
print(page.id)
```

Returns: `channels` (int64), `countries` (array[string]), `created_at` (string), `id` (string), `name` (string), `record_type` (enum: channel_zone), `updated_at` (string)

## Update voice channels for non-US Zones

Update the number of Voice Channels for the Non-US Zones. This allows your account to handle multiple simultaneous inbound calls to Non-US numbers. Use this endpoint to increase or decrease your capacity based on expected call volume.

`PUT /channel_zones/{channel_zone_id}` — Required: `channels`

```python
channel_zone = client.channel_zones.update(
    channel_zone_id="550e8400-e29b-41d4-a716-446655440000",
    channels=0,
)
print(channel_zone.id)
```

Returns: `channels` (int64), `countries` (array[string]), `created_at` (string), `id` (string), `name` (string), `record_type` (enum: channel_zone), `updated_at` (string)

## List dynamic emergency addresses

Returns the dynamic emergency addresses according to filters

`GET /dynamic_emergency_addresses`

```python
page = client.dynamic_emergency_addresses.list()
page = page.data[0]
print(page.id)
```

Returns: `administrative_area` (string), `country_code` (enum: US, CA, PR), `created_at` (string), `extended_address` (string), `house_number` (string), `house_suffix` (string), `id` (string), `locality` (string), `postal_code` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_name` (string), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)

## Create a dynamic emergency address.

Creates a dynamic emergency address.

`POST /dynamic_emergency_addresses` — Required: `house_number`, `street_name`, `locality`, `administrative_area`, `postal_code`, `country_code`

Optional: `created_at` (string), `extended_address` (string), `house_suffix` (string), `id` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)

```python
dynamic_emergency_address = client.dynamic_emergency_addresses.create(
    administrative_area="TX",
    country_code="US",
    house_number="600",
    locality="Austin",
    postal_code="78701",
    street_name="Congress",
)
print(dynamic_emergency_address.data)
```

Returns: `administrative_area` (string), `country_code` (enum: US, CA, PR), `created_at` (string), `extended_address` (string), `house_number` (string), `house_suffix` (string), `id` (string), `locality` (string), `postal_code` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_name` (string), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)

## Get a dynamic emergency address

Returns the dynamic emergency address based on the ID provided

`GET /dynamic_emergency_addresses/{id}`

```python
dynamic_emergency_address = client.dynamic_emergency_addresses.retrieve(
    "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
)
print(dynamic_emergency_address.data)
```

Returns: `administrative_area` (string), `country_code` (enum: US, CA, PR), `created_at` (string), `extended_address` (string), `house_number` (string), `house_suffix` (string), `id` (string), `locality` (string), `postal_code` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_name` (string), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)

## Delete a dynamic emergency address

Deletes the dynamic emergency address based on the ID provided

`DELETE /dynamic_emergency_addresses/{id}`

```python
dynamic_emergency_address = client.dynamic_emergency_addresses.delete(
    "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
)
print(dynamic_emergency_address.data)
```

Returns: `administrative_area` (string), `country_code` (enum: US, CA, PR), `created_at` (string), `extended_address` (string), `house_number` (string), `house_suffix` (string), `id` (string), `locality` (string), `postal_code` (string), `record_type` (string), `sip_geolocation_id` (string), `status` (enum: pending, activated, rejected), `street_name` (string), `street_post_directional` (string), `street_pre_directional` (string), `street_suffix` (string), `updated_at` (string)

## List dynamic emergency endpoints

Returns the dynamic emergency endpoints according to filters

`GET /dynamic_emergency_endpoints`

```python
page = client.dynamic_emergency_endpoints.list()
page = page.data[0]
print(page.dynamic_emergency_address_id)
```

Returns: `callback_number` (string), `caller_name` (string), `created_at` (string), `dynamic_emergency_address_id` (string), `id` (string), `record_type` (string), `sip_from_id` (string), `status` (enum: pending, activated, rejected), `updated_at` (string)

## Create a dynamic emergency endpoint.

Creates a dynamic emergency endpoints.

`POST /dynamic_emergency_endpoints` — Required: `dynamic_emergency_address_id`, `callback_number`, `caller_name`

Optional: `created_at` (string), `id` (string), `record_type` (string), `sip_from_id` (string), `status` (enum: pending, activated, rejected), `updated_at` (string)

```python
dynamic_emergency_endpoint = client.dynamic_emergency_endpoints.create(
    callback_number="+13125550000",
    caller_name="Jane Doe Desk Phone",
    dynamic_emergency_address_id="0ccc7b54-4df3-4bca-a65a-3da1ecc777f0",
)
print(dynamic_emergency_endpoint.data)
```

Returns: `callback_number` (string), `caller_name` (string), `created_at` (string), `dynamic_emergency_address_id` (string), `id` (string), `record_type` (string), `sip_from_id` (string), `status` (enum: pending, activated, rejected), `updated_at` (string)

## Get a dynamic emergency endpoint

Returns the dynamic emergency endpoint based on the ID provided

`GET /dynamic_emergency_endpoints/{id}`

```python
dynamic_emergency_endpoint = client.dynamic_emergency_endpoints.retrieve(
    "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
)
print(dynamic_emergency_endpoint.data)
```

Returns: `callback_number` (string), `caller_name` (string), `created_at` (string), `dynamic_emergency_address_id` (string), `id` (string), `record_type` (string), `sip_from_id` (string), `status` (enum: pending, activated, rejected), `updated_at` (string)

## Delete a dynamic emergency endpoint

Deletes the dynamic emergency endpoint based on the ID provided

`DELETE /dynamic_emergency_endpoints/{id}`

```python
dynamic_emergency_endpoint = client.dynamic_emergency_endpoints.delete(
    "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
)
print(dynamic_emergency_endpoint.data)
```

Returns: `callback_number` (string), `caller_name` (string), `created_at` (string), `dynamic_emergency_address_id` (string), `id` (string), `record_type` (string), `sip_from_id` (string), `status` (enum: pending, activated, rejected), `updated_at` (string)

## List your voice channels for US Zone

Returns the US Zone voice channels for your account. voice channels allows you to use Channel Billing for calls to your Telnyx phone numbers. Please check the Telnyx Support Articles section for full information and examples of how to utilize Channel Billing.

`GET /inbound_channels`

```python
inbound_channels = client.inbound_channels.list()
print(inbound_channels.data)
```

Returns: `channels` (integer), `record_type` (string)

## Update voice channels for US Zone

Update the number of Voice Channels for the US Zone. This allows your account to handle multiple simultaneous inbound calls to US numbers. Use this endpoint to increase or decrease your capacity based on expected call volume.

`PATCH /inbound_channels` — Required: `channels`

```python
inbound_channel = client.inbound_channels.update(
    channels=7,
)
print(inbound_channel.data)
```

Returns: `channels` (integer), `record_type` (string)

## List All Numbers using Channel Billing

Retrieve a list of all phone numbers using Channel Billing, grouped by Zone.

`GET /list`

```python
response = client.list.retrieve_all()
print(response.data)
```

Returns: `number_of_channels` (integer), `numbers` (array[object]), `zone_id` (string), `zone_name` (string)

## List Numbers using Channel Billing for a specific Zone

Retrieve a list of phone numbers using Channel Billing for a specific Zone.

`GET /list/{channel_zone_id}`

```python
response = client.list.retrieve_by_zone(
    "channel_zone_id",
)
print(response.data)
```

Returns: `number_of_channels` (integer), `numbers` (array[object]), `zone_id` (string), `zone_name` (string)

## Get voicemail

Returns the voicemail settings for a phone number

`GET /phone_numbers/{phone_number_id}/voicemail`

```python
voicemail = client.phone_numbers.voicemail.retrieve(
    "123455678900",
)
print(voicemail.data)
```

Returns: `enabled` (boolean), `pin` (string)

## Create voicemail

Create voicemail settings for a phone number

`POST /phone_numbers/{phone_number_id}/voicemail`

Optional: `enabled` (boolean), `pin` (string)

```python
voicemail = client.phone_numbers.voicemail.create(
    phone_number_id="123455678900",
)
print(voicemail.data)
```

Returns: `enabled` (boolean), `pin` (string)

## Update voicemail

Update voicemail settings for a phone number

`PATCH /phone_numbers/{phone_number_id}/voicemail`

Optional: `enabled` (boolean), `pin` (string)

```python
voicemail = client.phone_numbers.voicemail.update(
    phone_number_id="123455678900",
)
print(voicemail.data)
```

Returns: `enabled` (boolean), `pin` (string)