Outside: [Line] + Telephone Number

Inside—Ring:

[Intercom]+ Ext. Number

Inside—Page:

[Intercom] +

[*]+ Ext. Number

[Intercom] + [ * ] [ 7 ]

Telephone or Ext. Number+ [Conf] +

Telephone or Ext. Number+ [Conf]

To Drop:

[Drop] (MLS-12) or [Feature] [0] [6] (MLS-6)

To Hold: [Hold]

To Pick Up: [Line]

[Transfer] + Ext. Number

Making a Call

To call an outside party:

1.Press an idle (not lit) outside [Line] button.

2.Lift the handset.

3.Dial the telephone number.

To call an inside party (another extension):

1.Press an idle (not lit) [Intercom] button.

2.Lift the handset.

3.To ring the extension, dial extension number, or

To page (voice signal) another MLS phone, so your voice is heard through the speaker, dial [*] plus the extension.

If you lift the handset without pressing a button, you will be connected to the first idle line or intercom programmed for your extension.

To page all extensions with MLS phones:

1.Press an idle (not lit) [Intercom] button.

2.Dial [*] [7]. When you hear a beep, speak into the handset. Your voice is heard on all MLS phone speakers. If a user picks up, the page becomes an intercom call to that user.

Placing a Conference Call

To add parties to a call (max. 2 parties plus you):

1.Call the first party (can use Speed Dial or Auto Dial buttons).

2.After the first party answers, press [Conf].

3.Press an Idle [Line] or [Intercom] button, then call the second party.

4.After the second party answers, press [Conf] again. You are connected with both parties. If no one answers or the call is refused, to reconnect the first party, press the line button next to the winking green light.

To drop the last party added to the call:

MLS-12 phone → Press [Drop]

MLS-6 phone → Press [Feature] [0] [6]

NOTE: You cannot transfer or join a conference call.

Putting a Call on Hold

To put an outside or intercom call on hold:

1.Press [Hold].

To pickup a held call:

1.Press the held line button.

2.Lift the handset.

Transferring a Call

To pass an outside call to another extension:

1.Press [Transfer].

2.Dial the extension to which you want the call transferred.

3.When someone answers, announce the call, then hang up. If no one answers or the call is refused, press the line button next to the winking green light to reconnect the caller.

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AT&T MLS-12D manual Making a Call, Placing a Conference Call, Putting a Call on Hold, Transferring a Call
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MLS-12, MLS-12D specifications

The AT&T MLS-12 and MLS-12D are advanced mobile communication solutions designed to meet the demands of modern businesses and organizations. These systems are known for their robust performance and reliability, making them ideal for various sectors including public safety, transportation, and industrial applications.

One of the main features of the MLS-12 is its strong emphasis on voice clarity and audio quality. The system is integrated with cutting-edge noise reduction technologies that ensure clear communication even in noisy environments. This is particularly important for users operating in the field, where ambient noise can significantly impact radio communications.

The MLS-12D, on the other hand, enhances the capabilities of the standard MLS-12 by incorporating digital technologies that allow for advanced data services alongside voice communications. This dual functionality is critical in today's fast-paced environment, where instant access to information can streamline workflows and enhance decision-making processes. Users can send and receive text messages, access applications, and share data in real time, all while maintaining high-quality voice communications.

Both models feature an intuitive user interface designed for ease of operation, enabling quick access to essential functions. They are equipped with durable hardware built to withstand harsh conditions, ensuring operational reliability in environments where traditional communication systems may falter.

In terms of connectivity, the MLS series supports various frequency bands and communication protocols, making it versatile and compatible with multiple networks. This flexibility allows organizations to tailor their communication systems to fit unique operational requirements, further enhancing productivity.

Security is a significant concern in any communication system, and the AT&T MLS-12 and MLS-12D address this with advanced encryption technologies that safeguard voice and data transmissions. This feature is crucial for sectors that handle sensitive information, as it helps protect against unauthorized access and data breaches.

In conclusion, the AT&T MLS-12 and MLS-12D stand out as formidable choices for organizations looking to enhance their communication capabilities. With their emphasis on audio quality, advanced data services, user-friendly interfaces, robustness, and security, these devices are well-equipped to meet the evolving demands of modern communication in various industries.
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