Codecs

Overview

Codec’s supported on ClearlyIP Phones.

• PCMU (G711 alaw)

• PCMA (G711 ulaw)

• G729

• G726

• G723

• G722

• iLBC

• OPUS

Specific Extension Codec Settings

• ClearlyIP Device Manager will check an extensions Codec Allow & Disallow settings and configure the extension accordingly.

• If you wish to assign specific Codecs to an individual extension (such as a remote user with unique bandwidth requirements.)

1. Navigate to Applications –> Extensions

2. Select Edit for the Extension you wish to configure

3. Select the Advanced Tab

4. Set Disallowed Codecs to "all"

5. Set Allowed Codecs to the Codecs you want, separating each with an ampersand "&" in order of preference.

• EX: opus&g722&ulaw&alaw

  • 

Note: It’s Generally good practice to have ulaw/alaw (g711u/g711a) as a last option, as it’s widely supported.

Global Codec Settings

• If an extension does not have any Codec Settings ClearlyIP Device Manager will configure the Phone’s Codecs according to the Codecs listed in Asterisk SIP Settings.

• If wish to manually define the Global Codecs and their priorities on you PBX.

1. Navigate to Settings –> Asterisk SIP Settings

2. Select the General SIP Settings Tab

3. Under the Codec Sections Select the Codecs you wish use.

4. Drag them into your preferred order with Top being First Priority.

Note: It’s Generally good practice to have ulaw/alaw (g711u/g711a) as a last option, as it’s widely supported.