Ensuring the best

audio quality.

“disp ip-codec-set 1”

Voice Portal

4

5.1.1 Ensuring best-quality IP Audio

To ensure best audio quality when calling Voice Portal from an IP phone, use the “display ip-codec-set 1” command and verify that a G711MU codec is shown at the first position.

Voice Portal supports Voip Audio Formats set to audio/basic(default) or audio/x- alaw-basic. This selection is defined on the VPMS’s web page under the VoIP Settings. Make sure the switch is configured to support the codec you select.

If you have selected audio/basic on the VPMS, then the codec set on the switch should include G711MU. If you have selected audio/x-alaw-basicon the VPMS, then the codec set on the switch should include G711A.

Note: When Voice Portal negotiates a codec from the switch at call setup, it typically will use the first codec on the list (below). A G711MU codec is typically used in the US and Japan, while a G711A is used in Europe and other parts of the world.

Figure 1a: Codec Sets

display ip-codec-set 1

 

 

 

Page 1 of 2

 

 

 

 

IP Codec Set

 

Codec Set: 1

 

 

 

 

 

Audio

Silence

 

Frames

Packet

 

Codec

 

(Continued on next page)

 

Suppression

Per Pkt

Size (ms)

 

1: G.711MU

n

 

3

 

30

 

2: G.711A

n

 

3

 

30

 

3:

 

 

 

 

 

 

4:

 

 

 

 

 

 

 

 

 

 

Important: This setting should be set to

5:

 

 

 

 

 

 

 

 

 

 

6:

 

 

 

 

match the same setting on

7:

 

 

 

 

Media Encryption: none

 

 

 

the Voice Portal system.

 

 

 

 

 

To work properly with Avaya Voice

 

5.1.2 IP-IP Direct

 

Portal, the required minimum Packet

 

 

Size setting in the IP-Code-Set is 20 ms.

 

Audio settings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-continued on next page -

The above information is provided by AVAYA Inc. as a guideline. See disclaimer on page 1

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Avaya 3910 manual Disp ip-codec-set, On next

3910 specifications

The Avaya 3910 is a versatile and robust communication device designed primarily for businesses seeking to enhance their telephony experience. It is part of Avaya's comprehensive range of endpoints that cater to various business needs, emphasizing user experience and connectivity.

One of the standout features of the Avaya 3910 is its ergonomic design, allowing for ease of use throughout the workday. The phone features a large backlit display, making it simple to navigate menus and view caller information, even in low-light conditions. The display is complemented by a dedicated speakerphone, which enables hands-free communication, ideal for multitasking environments.

This model supports multiple lines, enabling users to manage concurrent calls effortlessly. The programmable keys on the phone allow for swift access to frequently used functions or contacts, promoting efficiency in communication processes. Furthermore, the Avaya 3910 is equipped with advanced audio technologies that deliver crystal-clear sound quality for both parties during calls, using noise cancellation features to minimize background distractions.

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The Avaya 3910 also focuses on security features, incorporating encryption protocols that protect sensitive communications. This is particularly crucial for businesses that handle confidential information.

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In summary, the Avaya 3910 stands out as a reliable and feature-rich communication solution, effectively combining user-friendly design, advanced technology, and robust security to meet the demands of modern business communication. Its multiple features cater to various needs, making it a valuable addition to any corporate telephony system.