Operation Manual

478 COMfortel 1400IP/2600IP/3600IP - Firmware V2.2G - Operation and Configuration V03 07/2015

Settings

Providers and PBXs

Configuring DTMF Signalling

You can configure how DTMF signals are sent to the provider.

Do so as follows:

• Separately for the provider or PBX

• Using the configuration manager

• Using the telephone

Using the Configuration Manager to Configure DTMF Signalling

1. Open the Settings > Providers & PBXs screen.

2. In the line that contains the provider/PBX, click Configure.

The provider/PBX configuration screen opens.

3. Click on the RTP tab.

4. In the DTMF signalling list field, select one of the following options:

Further steps:

– Save your settings before you leave the screen.

Using the Telephone to Configure DTMF Signalling

1. Tap on Apps > Settings > Providers & PBXs.

2. Tap on the name of the provider/PBX.

3. Under RTP settings, tap on RTP settings.

Outband, with local response in acc. with RFC2833: The telephone uses

different channels to transfer DTMF signals and voice data. The DTMF signals

are filtered out of the voice data. You hear a confirmation tone to confirm that

the DTMF signals have been sent successfully.

Inband, DTMF signals sent through the audio channel: The telephone uses

the same channel (DTMF tones) to transfer DTMF signals and voice data.

Outband, in acc. with RFC2833: The telephone uses different channels to

transfer DTMF signals and voice data. The DTMF signals are filtered out of the

voice data.