The DECT IP multi-cell system is used for connecting multiple DECT base stations to a VoIP PBX. It provides higher DECT coverage, allows for more handsets to be connected at the same time, and provides the ability for simultaneous calls across multiple base stations.
Visit the Poly support site for setup guides for multi-cell DECT systems.
As a sample, this section contains instructions on how to set up the Yealink Multi-Cell DECT System, using the W80DM and W80B phones as an example. Using the same article for the W90DM and W90B is also an option.
According to the following table, the following Yealink base stations are certified:
|W80DM DECT Manager||At least one|
|W80B Base Stations||Up to 30 per DECT manager|
|Handsets (Mobile Devices)||Up to 100 per DECT manager|
|W90DM DECT Manager||At least one|
|W90B Base Stations||Up to 60 per DECT manager|
|Handsets (Mobile Devices)||Up to 250 per DECT manager|
DM can always connect to DM, regardless of whether the two units are located in different areas, because the W80DM connects to W80B (Base Station) only by means of an internal network. With this connection between base and base, the handsets are able to roam and handover under the DECT coverage provided by the base network, using the built-in DECT signal.
Powering on the W80B
You can use either method a or method b to connect the power and the network.
A. You may use AC power.
B. You may use PoE (Power Over Ethernet).
After the W80DM/W80B units have been connected to the power and network, the following LED status is displayed:
|Base Mode Option||Role||DECT LED||ROLE LED||LAN LED|
Obtaining the IP address of W80DM and W80B
IP address of the W80B can be obtained in two ways:
Option 1 (recommended): Yealink Discovery Tool
- Yealink Discovery Tool can be downloaded and installed.
- When the tool is opened, it will show the IP address of the device.
- Please enter the IP segment the W80DM or W80B Base belong to. To do that, please use the following format:
“192.168.[1, 3, 5-10]. “2-10, 15-200” is the IP address of this server.
- In order to find out the IP address and MAC address of W80B, please click Scan.
It is possible, for instance, to search for your W80Bs using 192.168.0.X by putting in 192.168.0.[0-254] in the search field and clicking the Scan button. W80Bs, including DMs and bases from the list, will be listed, and you can get more information about the IP address or MAC address that is matched to the W80B.
Option 2: DHCP server
- Make sure the DHCP option is supported on the local network.
- Check the IP address of the W80B using your system or an application.
Connecting the W80B base station to W80DM
Discovery and registration are the two phases of the entire registration process.
Making the W80DM discover the W80B
- Log on to the web interface of the W80B base station using your user name and password.
- Click Status then Base Mode under the left navigation menu.
- To direct the base to the DM, enter the IP address of W80DM in the DM IP field.
Registering the W80B to the W80DM
- Access the W80DM web interface by logging in with your username and password.
- From the left-side navigation menu, select Base Station, then click the icon under Operation in the Base Station Registration column.
- Set up some basic configurations related to the base station.
When the base connects to the DM, it will sync with the device and upgrade its firmware to be compatible with DM. It is possible to view the status Active and synced in the Base Station Settings after the connection is successful.
- If you wish to change the settings for the base station, you can select Edit in the registered list.
Aside from viewing the DECT LED on the W80B, you can also check the status of the base if it is active and synced:
|Base mode option||Role||DECT LED||Role LED||LAN LED|
Registering handsets on the W80 DM
Registering a handset can be done in two ways.
- The W80DM can be manually registered if only one or two handsets need to be registered.
- If you need to register more than one handset to the W80DM, you can register the handsets in one registration process with Registration Center. As soon as the handset is connected to the system, a SIP account is automatically assigned.
Registering Handsets Manually
- The W80DM web UI can be accessed by logging in with your W80DM username and password.
- Select Handset & Account from the left-side menu, and then select Handset Registration from the drop-down list.
- Then click Add Handset.
- Once the device is set to registration mode, click Start Register Handset.
- If you are using a handset, press the OK button > Settings > Registration and then you can start registering.
- Select the base that you would like the handset to be registered with.
0000 is the default pairing pin code. Handsets may appear as subscribed once registration has been completed.
Using Registration Center to register the handsets in a batch
- Using the W80DM web interface, sign in.
- Go to Handset & Account, then click Handset Registration on the left-hand navigation menu.
- Add a handset.
- Adding the handset’s IPUI and filling in the SIP account information is optional, but it is recommended once the handset has registered to the W80DM that the account be bound to the handset.
- Navigate to OK > Status > Handset > IPUI Code to check the IPUI settings on the W56H/W53 handset.
- You need to enter all the handsets in a batch into the web UI by clicking the handset & account tab then clicking the Registration Center link.
There can be only one SIP account per handset, and each handset can have only one SIP account.
Positioning the base station
Multi-cell DECT systems are characterized by roaming and handover. When switching between W80B bases, it is a good idea to check the call quality. Metering Mode allows the handset to check the signal strength of the DECT network at nearby base stations.
According to the metering data, the W80B can be positioned in the best location to optimize the synchronization and signal coverage.
Measuring the signal strength of the W80B
- Use metering mode after registering the handset to the base.
- Set the base to the desired position.
- You can dial *1383201# or *1234203# on your phone.
- To enable the measuring mode, navigate to the Menu > Settings > Telephony > Metering Mode menu item.
- At this point, you should be able to see the signal strength on the handset screen.
- During a call, information related to the upcoming call will appear in the upper left corner of the screen. It is now possible to check the audio quality as well as connectivity (whether the handover and roaming functions work properly between sites).
Metering mode parameter details
- The strength of the signal received. The best reception strength is measured in decibels.
- It should be between -27 dB and -85 dB. This will depend on the call.
- As an option, you can display RSSI values as a percentage rather than a dBm value.
- RSSI should be greater than -80dBm for good voice quality
- RSSI should be greater than 85dbm for good base synchronization.
- It should be between -27 dB and -85 dB. This will depend on the call.
- Fr. Quality:
- Framing quality. Last measuring interval, the percentage of packages delivered without errors. Ensure there are no packet losses by checking the frame quality;
100% is recommended.
- Base Station:
- The RPN of the base station (Radio Fixed Part Number) is described below. The RPN of the base station is the identifier for the handset that connects to it.
- It refers to the carrier frequency of the received signal.
The range of values is 0-30.
- Slot pair:
- The time slot that corresponds to the reception channel that was used for the measurement.
There was a pair of duplex slots (0-11).