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# BYON Caveats & Limitation

### BYON Caveats

There are certain cases where BYON may not work. Let’s take a look at the details.

* This feature is not always free. Some VoIP companies do offer number portability against a fee. The fee charged can be a one-time payment or can be a monthly amount payable as long as you keep the ported number. If you want to avail number portability, keep your finances ready and talk to your provider.
* Besides the fee, porting a number may also impose certain restrictions. You might be barred, as a result, from benefiting from certain features offered with the new service. This is true especially for features that are linked to their numbers, which are often given for free with a new service. One way people avoid this restriction is to pay for a second line that carries their ported number. This way, they have all the features with the new service while still being able to use their golden old line.

### BYON Limitations

Unlike traditional landline phones, which rely on infrastructure owned and operated by one or two providers in a geographic area, VoIP offers businesses more choices when it comes to their provider.

* Customers need to adhere to the provider’s policies while sending messages in bulk using long codes. Non-adherence to the provider’s policies might temporarily block the phone number which means you’ll no longer be able to send and receive text till the block is revoked.