Yealink SIP-T21 Manuel d'utilisateur télécharger pdf (Page 70)

User Guide for the SIP-T21P/SIP-T21 IP Phone

For more information on the valid values of Account field, refer to Replace Rule on

page 55.

4. Click Confirm to add the block out number.

Note

Public telephone networks in countries around the world have a single emergency

telephone number (emergency services number), that allows a caller to contact local

emergency services for assistance when necessary. The emergency telephone number

may differ from country to country. It is typically a three-digit number so that it can be

easily remembered and dialed quickly. Some countries have different emergency

numbers for different emergency services.

You can specify the emergency telephone number on the IP phone for contacting the

emergency services in an emergency situation.

Note

To specify emergency numbers via web user interface:

1. Click on Features->Phone Lock.

2. Enter the emergency number in the Emergency field.

Contact your local phone service provider for available emergency numbers in your

area.

Block out number is configurable via web user interface only.

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Yealink SIP-T21 Manuel d'utilisateur Page 70