# A continuing service. Clear terms at every step.

Prepare a supported mobile subscription with explicit allowances, renewal and cancellation terms. Keep the subscriber, payer and plan changes identifiable.

## 今日生效。 变更在生效时应用。

查看活跃服务、变更请求和取消请求之间的区别。

[探索移动套餐](/docs/guides/esim/mobile-plans)
使用虚构数据的交互式示意图。不会执行任何账户操作。

## Review the relationship. Track its changes.

Choose a mobile plan with clear allowances and terms.

### Confirm the supported offer.

A prepaid package, eSIM profile and recurring subscription are different services. Confirm the market and lifecycle operations before designing a recurring checkout.

### Explain the complete terms.

Show data, calls, SMS, roaming, published recurring charges and the renewal period. Identify the subscriber, payer and person authorized to manage the line.

### Keep requests separate from active service.

A plan change takes effect on its recorded date. Cancellation and port-out need their supported processes and final billing checks; removing an eSIM from a device does not cancel a subscription.

[Explore eSIM mobile plans →](/docs/guides/esim/mobile-plans)

## Keep building with eSIM.

Connect the plan to its assignee, current observations and operating responsibilities.

[Employee connectivity Connect the company plan to the employee lifecycle. →](/esim-api/features/employee-connectivity)

[Usage See reported usage and the allowance left on a package. →](/docs/guides/esim/usage-and-top-ups)

[Order management Find the correct next step for a connectivity purchase. →](/esim-api/features/operations)

[Explore eSIM →](/esim-api)

## 规模扩展 不失控。

在工作区中组织团队，控制 API 访问权限，通过审计日志追踪变更。

[工作区](/docs/guides/workspaces)[团队角色](/docs/guides/users-teams-roles)[API 身份验证](/docs/guides/authentication)
[了解企业方案](/enterprise)

## Start with eSIM. Build across channels with Bird.

[Get Started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Fesim) · [Contact Sales](/demo?product=esim)

[Email](/email-api) · [SMS](/sms-api) · [WhatsApp](/whatsapp-api) · [Apple Messages](/apple-messages-api) · [Voice](/voice-api)



## Related resources

- [eSIM connectivity guide](/docs/guides/esim/overview) (docs)
- [What is an eSIM?](/explained/esim/what-is-an-esim) (answer)

[Get an implementation brief](/learn/workspace?topic=esim)