Yealink SIP-T23P IP Phone Firmware 44.81.0.90

New Features 

1. Added Opus codec for SIP-T27G, SIP-T41S, SIP-T42S, SIP-T46S and SIP-T48S IP Phones.

2. Added the feature of Recording Using a USB Flash Drive on SIP-T27G, SIP-T41S and SIP-T42S IP Phones.

3. Added the feature that you can activate/deactivate the Wi-Fi mode and then connect your phone to the desired wireless network on SIP-T27G, SIP-T41S and SIP-T42S IP Phones.

4. Added the feature of Bluetooth Headset on SIP-T27G, SIP-T41S and SIP-T42S IP Phones.

5. Added the feature that you can also connect your Bluetooth-Enabled mobile phone to the IP phone, and then synchronize the mobile contacts to SIP-T29G, SIP-T46S, SIP-T46G, SIP-T48S and SIP-T48G IP Phones.

6. Added the feature that you can configure the ringer volume forcedly.

7. Added two audio codecs for SIP-T27G IP Phone.

Optimization 

1. Optimized the feature of Bluetooth.

New Features Descriptions 

1. Added Opus codec for SIP-T27G, SIP-T41S, SIP-T42S, SIP-T46S and SIP-T48S IP Phones.

Description: The T27G/T48S/T46S/T42S/T41S IP phones support using WB (default) or NB for Opus encoding; and using NB, MB, WB, SWB and FB for Opus decoding

2. Added the feature of Recording Using a USB Flash Drive on SIP-T27G, SIP-T41S and SIP-T42S IP Phones.

Description: When the phone is idle, and you insert a USB flash drive into the USB port on IP phone, the phone will detect the USB flash drive and display a flashing icon . After detecting the USB flash drive, the icon stops flashing and LCD screen prompts “USB device is connected.”. You can record active calls or conferences using a USB flash drive.

3. Added the feature that you can activate/deactivate the Wi-Fi mode and then connect your phone to the desired wireless network on SIP-T27G, SIP-T41S and SIP-T42S IP Phones.

Description: Wi-Fi is a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. You can activate/deactivate the Wi-Fi mode on the IP phone, and then connect your phone to the desired wireless network. Before using this feature, please ensure that the Wi-Fi USB Dongle WF40 is properly connected to the USB port at the back of the IP phone.

4. Added the feature of Bluetooth Headset on SIP-T27G, SIP-T41S and SIP-T42S IP Phones.

Description: You can activate/deactivate the Bluetooth mode on the phone, and then pair and connect the Bluetooth headset with your phone. You can scan and pair up to 60 Bluetooth headsets with your phone. However, only one headset can be connected at a time. You can also disconnect and delete your Bluetooth headset from the phone

5. Added the feature that you can connect your Bluetooth-Enabled mobile phone to the IP phone, and then synchronize the mobile contacts to SIP-T29G, SIP-T46S, SIP-T46G, SIP-T48S and SIP-T48G IP Phones.

Description: When the first time your IP phone pairs and connects to your Bluetooth-enabled mobile phone, you will be asked if you would like to sync phone contacts temporarily. If it is allowed, the phone contacts will be imported to the mobile contacts directory on your IP phone. Now, Yealink SIP-T29G, SIP-T46S, SIP-T46G, SIP-T48S and SIP-T48G IP Phones are compatible with the following phone models: iPhone 5SE and above, Samsung S7, Google Pixel, Sony Xperia, Huawei P3, MIUI 4C and below, and Blackberry. For the maximum number of mobile contacts, besides Sony Speria and Google Pixel only support 500 mobile contacts, the other supported models support 1000 mobile contacts.

6. Added the feature that you can configure the ringer volume forcedly. Description: You can configure the ringer volume forcedly, so the user cannot adjust the ringer volume on the phone. This feature is used to avoid missing calls when the user turns down the ringer volume.

7. Added two audio codecs for SIP-T27G IP Phone.

Description: The newly added two audio codecs for SIP-T27G IP Phone are G723_53 and G723_6.

Optimization Descriptions 

1. Optimized the feature of Bluetooth.

Description:

(1) Optimized the feature that after you press Connect soft key to pair and connect Bluetooth headset or Bluetooth-enabled mobile phone, it will then automatically connected to your IP phone without entering the desired PIN in the Password field.

(2) When the first time your IP phone pairs and connects to your Bluetooth-enabled mobile phone, you will be asked if you would like to sync phone contacts temporarily. If it is allowed, the phone contacts will be imported to the mobile contacts directory on your IP phone.

About VoIP Phone Firmware:

Firmware updates for VoIP Phones are very important as they usually contain many bug fixes, add new features and updates, as well as add additional security features.

One of the main problems users come across when attempting to upgrade their VoIP Phone is that their device may be locked to a certain Carrier. Adding an unlocked version of the firmware may cause the device to stop working on certain networks. This operation may void your carrier warranty and, as such, is not recommended.

Before downloading, make sure that you have selected the appropriate firmware for your device and that the update supports the VoIP service provider you use.

Generally, it is important to upgrade older firmware in sequence (v1 to v2 to v3) and so on, because many manufacturers don’t launch standalone update packages.

Although using beta release firmware packages is tempting, it can prove to be quite risky as well. If you choose to try beta release updates, please read the detailed firmware notes and make sure that you have the possibility to revert to an older and more stable version in case the beta turns out faulty.

If you feel that this update can improve the functionality of your VoIP Phone, please use the download button and follow the installation instructions