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Безусловная переадресация звонков: что это такое и как ее настроить

Безусловная переадресация вызовов отправляет каждый вызов без исключений в другое место. Посмотрите, чем она отличается от условной переадресации и кодов активации сети.

Akil Patel

Старший писатель

14 июля 2026 г.6 минут чтения
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Phone icon with every incoming call arrow redirected to a second phone, with no conditions attached

Что на самом деле означает здесь «безусловный»

Безусловная переадресация вызовов перенаправляет каждый входящий вызов на другой номер немедленно, без исключений — ни когда занят, ни когда без ответа, ни когда вне зоны покрытия. Это настройка «всегда», и она, скорее всего, вызовет путаницу, поскольку вызов, переадресованный таким образом, вообще никогда не звонит на исходный телефон.

В этом руководстве рассказывается, что отличает ее от условной переадресации, коды активации, которые включают ее непосредственно через сеть, а также этапы настройки на устройствах, которые люди фактически используют.

Безусловный и условный: разница, которая имеет значение

Comparison diagram: unconditional forwarding redirects every call immediately, conditional forwarding only redirects under specific conditions

Безусловная переадресация активируется один раз и остается активным при каждом вызове, пока не будет отключен вручную. Оригинальный телефон никогда не звонит — каждый звонок поступает прямо к адресату переадресации.

Условная переадресация активируется только при определенных обстоятельствах: когда линия занята, когда после заданного количества звонков нет ответа или когда телефон недоступен (выключен или находится вне зоны покрытия). Каждое из этих трех условий контролируется отдельно от безусловной переадресации, и в телефоне может быть одновременно активировано несколько условий.

Это различие имеет значение, поскольку отключение одного не влияет на другое — частый источник путаницы для тех, кто занимается устранением неполадок телефона, который все еще перенаправляет вызовы после отключения только одного типа.

Коды активации

GSM star codes for unconditional call forwarding: activate with star 21 star number pound, cancel with pound pound 21 pound

В большинстве сетей GSM по всему миру безусловная переадресация контролируется непосредственно через сеть с помощью звездного кода, независимо от какого-либо экранного меню:

  • Активировать: набирать номер *21*[destination number]# и нажмите вызов.
  • Отмена: набирать номер ##21# и нажмите вызов.
  • Проверить статус: набирать номер *#21# and press call — the screen shows whether it's active and which number calls are being sent to.

These codes work on the network level, which means they function even on phones where the setting is buried in a confusing menu or missing entirely. They come from the standard call-forwarding MMI codes built into the GSM network layer, for anyone who wants the technical background.

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Настройка на iPhone и Android

On iPhone: open Settings, then Phone, then Call Forwarding, then toggle it on and enter the destination number. This maps directly to the *21* code above, just through a menu instead of a dialed code.

On Android: open the Phone app, tap the three-dot menu, go to Settings, then Calls, then Call Forwarding, and select "Always forward" (wording varies slightly by manufacturer). Enter the destination number and confirm.

If either menu path doesn't work — which happens more often on carrier-locked or CDMA devices — the *21* star code works directly through the network regardless of what the phone's own settings show.

Где на самом деле используется безусловная переадресация

Three panels labeled temporary redirects, number migration, and multi-location routing

Temporary full redirects. Forwarding every call to a personal or backup number while a business line is unattended — during a closure, a move, or before a new system is fully set up — is the most common legitimate use.

Testing a new number before switching over. Businesses migrating to a new number sometimes forward the old one unconditionally to the new line during a transition period, so callers on the old number reach the right place without needing to know anything changed.

Multi-location routing. A single published number can unconditionally forward to whichever location is actually staffed that day, which is one of the simpler routing patterns available before setting up a full auto-attendant or IVR menu.

Businesses running this kind of setup at any real scale typically move it into a UCaaS (Unified Communications as a Service) platform — a single cloud system for calling, messaging, and video — where forwarding rules can be managed centrally across every line instead of dialing star codes on individual phones, the same shift covered in our guide to turning off call forwarding for the reverse case. My Country Mobile handles this kind of centralized call routing for business numbers. Contact us to set up forwarding rules across a full team rather than device by device.

Одна ошибка, которая вызывает больше всего путаницы

Four separate forwarding toggles for unconditional, busy, no-answer, and unreachable, with only one switched off while three remain active

Turning off unconditional forwarding does not touch conditional forwarding, and vice versa — they're controlled independently even though both fall under the umbrella term "call forwarding." Anyone troubleshooting a phone that's still redirecting calls after disabling one type should check all four settings (unconditional, busy, no-answer, unreachable) rather than assuming one cancels the rest.

Заключение

Unconditional call forwarding is the simplest of the forwarding types conceptually — every call, no exceptions — but it's also the one most likely to get left on by accident, since nothing on the original phone indicates it's active beyond the setting itself. The *21* and ##21# codes work reliably across GSM carriers regardless of what a phone's menu shows, which makes them worth knowing even for anyone who normally manages forwarding through settings instead.

Ключевые выводы

  • Unconditional forwarding redirects every call immediately — the original phone never rings at all while it's active.
  • It's controlled independently from conditional forwarding (busy, no-answer, unreachable), so turning off one doesn't affect the others.
  • The *21*[number]# code activates it, ##21# cancels it, and *#21# checks its status on most GSM networks.
  • Common legitimate uses include temporary redirects, number migrations, and multi-location routing.
  • At business scale, centralizing this in a UCaaS platform replaces manually dialing star codes on individual phones.

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Часто задаваемые вопросы

What does "unconditional" mean in call forwarding?

It means every incoming call is redirected immediately with no exceptions — not just when busy or unanswered. The original phone never rings while it's active.

What's the code to turn on unconditional call forwarding?

*21*[destination number]# activates it on most GSM networks. ##21# cancels it, and *#21# checks whether it's currently active.

Does turning off unconditional forwarding also turn off conditional forwarding?

No. They're controlled independently. Turning off unconditional forwarding leaves any active conditional settings (busy, no-answer, unreachable) untouched.

Will the caller know their call was forwarded unconditionally?

Usually not. The call connects to the forwarding destination with no notice to the caller in most cases.

Can I set up unconditional forwarding without codes, using just my phone's settings?

Yes. Both iPhone and Android have a menu-based toggle for this that maps to the same underlying network setting as the *21* code.

Why would a business want every call to unconditionally forward somewhere else?

Common reasons include a temporary closure, migrating to a new number during a transition, or routing a single published number to whichever location is staffed that day.

Written by

Akil Patel

Старший писатель

Akil writes the MCM field guides on phone numbers, dialing rules, and area-code references used by ops teams across North America.

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