[FAQ] How can I use PTT / Push To Talk / Paging / Page ?

SteffenBaierUK · ‎08-19-2026

The Push-to-Talk (PTT) and Group Paging features are supported on all compatible Poly phone models installed with UC software 4.0.0 or later.

NOTE: When using Paging with compatible CCX phones in Microsoft Teams mode ensure port 5002 is being used instead of 5001! Details for Paging when a CCX is in Microsoft Teams mode are >here<

NOTE: The Poly Trio, unlike the Poly Rove, Edge E, VVX,CCX SoundPoint or SoundStation IP Phone Range, does not support PTT / Push to Talk!
This is not GroupPaging

A Poly Trio can only receive a Page or be part of a Paging Group but cannot send a page itself.

Group Paging

The Group Paging feature enables you to make pages aka a:

—one way audio announcements — to users subscribed to a page group.

PTT Mode

The Push to Talk (PTT) feature is a collaborative tool that enables you to exchange broadcasts to users subscribed to a PTT channel, much like a walkie-talkie.

You can transmit pages and PTT broadcasts using your handset, headset, or speakerphone and you can reject them, place them on hold, and end them at any time.
PTT broadcasts can be transmitted via the speakerphone, handset, and headset, and pages can be received only through the speakerphone.

Both features are available on all compatible phones.

You can enable one of these features or you can operate both simultaneously.

Paging and PTT each have 25 groups/channels you can subscribe to.

PTT Mode PTT mode is intended primarily for Wi-Fi phones such as the SpectraLink handsets.

In PTT mode, the phone behaves like a walkie-talkie
You can broadcast audio to a PTT channel and recipients subscribed to that channel can respond to your message.

PTT Mode Configuration

Current PVOS UI

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Older UC Software UI

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Paging Mode Paging mode is intended primarily for desktop phones.

In Paging mode, you can send announcements to recipients subscribed to a page group. In Page mode, announcements play only through the phone’s speakerphone.

In order to customize the availability of the Page functionality for other call scenarios please check the Soft Key Example 5 => here <=

Setting a fixed paging Volume:

The ptt.volume parameter (UC Software 4.0.5 or later) can be used to set a pre-defined paging Volume.

default = -20 (whereas default for ptt.emergencyChannel.volume is -10)
max = 0
min = -57

Logs:

To get logs for PTT please set the following logging levels

Settings > Logging > Global Settings > Global Log Level Limit > Log File Size (Kbytes) > VVX prior to 5.5.0 = 180 after 5.5.0 = 1000 or Trio 10240
Settings > Logging > Module Log Level Limits > PTT > Event 1

Sending a Page

0416203614|ptt  |2|00|[PpsPttC]: app2PpsTalkPressed
0416203614|ptt  |2|00| [PpsPttC]::ppsProcMsg() starting PTT/Page call
0416203614|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Idle,event=KeyTalk, enter next state=Alert
0416203614|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkPressed channel 26,Ptt AppId 0
0416203614|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkPressed Mode=wlanModeTimeReleased, Release Interval 30ms, channel 26,Ptt AppId 0
0416203615|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Alert,event=Timeout, enter next state=Transmit
0416203623|ptt  |2|00|[PpsPttC]: app2PpsTalkReleased
0416203623|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Transmit,event=KeyNone, enter next state=EOTWait
0416203623|ptt  |2|00| [PpsPttC]::ppsProcMsg() releasing call 
0416203623|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkReleased Channel 26, Ptt AppId 0
0416203623|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkReleased Mode=wlanModePttRx Channel 26,Ptt AppId 0
0416203623|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=EOTWait,event=Timeout, enter next state=EOT
0416203623|ptt  |2|00|[PpsPttC]: mediaSess2PpsCallRelease NetCall(0xb09379c0) UsrCall(0xb52bce20) Reason(3)
0416203623|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop channel 26, reason 3
0416203623|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop Channel 26,Ptt AppId 0 
0416203623|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop Mode=wlanModeStandby,Release Interval 650ms, Channel 26, Deleting the Ptt AppId 0
0416203623|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop Mode=wlanModeStandby,Release Interval 650ms Channel 26,After deleting the Ptt AppId 0
0416203623|so   |4|00|MsgAppCallRemotePartyGetCmnd: Current Media Session is not in Active List.
0416203623|so   |4|00|MsgAppCallRemotePartyGetCmnd: Current Media Session is not in Active List.
0416203623|app1 |4|00|AppHybridC::termLclChg failed to find pCall
0416203624|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=EOT,event=Timeout, enter next state=Waiting
0416203624|ptt  |1|00|[PpsPttChanC]: pttChannelC::enterWaiting numTries == [2] 

0416203626|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Waiting,event=Timeout, enter next state=Idle
0416203645|ptt  |2|00|[PpsPttC]: app2PpsTalkPressed
0416203645|ptt  |2|00| [PpsPttC]::ppsProcMsg() starting PTT/Page call
0416203645|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Idle,event=KeyTalk, enter next state=Alert
0416203645|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkPressed channel 26,Ptt AppId 0
0416203645|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkPressed Mode=wlanModeTimeReleased, Release Interval 30ms, channel 26,Ptt AppId 
0416203646|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Alert,event=Timeout, enter next state=Transmit
0416203649|ptt  |2|00|[PpsPttC]: app2PpsTalkReleased
0416203649|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Transmit,event=KeyNone, enter next state=EOTWait
0416203649|ptt  |2|00| [PpsPttC]::ppsProcMsg() releasing call 
0416203649|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkReleased Channel 26, Ptt AppId 0
0416203649|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsTalkReleased Mode=wlanModePttRx Channel 26,Ptt AppId 0
0416203649|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=EOTWait,event=Timeout, enter next state=EOT
0416203649|ptt  |2|00|[PpsPttC]: mediaSess2PpsCallRelease NetCall(0xb09379c0) UsrCall(0xb52c4b20) Reason(3)
0416203649|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop channel 26, reason 3
0416203649|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop Channel 26,Ptt AppId 0 
0416203649|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop Mode=wlanModeStandby,Release Interval 650ms, Channel 26, Deleting the Ptt AppId 0
0416203649|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop Mode=wlanModeStandby,Release Interval 650ms Channel 26,After deleting the Ptt AppId 0
0416203649|so   |4|00|MsgAppCallRemotePartyGetCmnd: Current Media Session is not in Active List.
0416203649|so   |4|00|MsgAppCallRemotePartyGetCmnd: Current Media Session is not in Active List.
0416203649|app1 |4|00|AppHybridC::termLclChg failed to find pCall
0416203649|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=EOT,event=Timeout, enter next state=Waiting
0416203649|ptt  |1|00|[PpsPttChanC]: pttChannelC::enterWaiting numTries == [2] 
0416203651|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Waiting,event=Timeout, enter next state=Idle

Receiving a Page:

0417083614|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Idle,event=ReceiveAlert, enter next state=Receive
0417083614|ptt  |2|00|[PpsPttC]: mediaSess2PpsCallAnswer NetCall(0x18f8f38) UsrCall(0x162a2e8)
0417083614|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallAnswer channel 26
0417083615|ptt  |1|00|First rx payload est. : 20
0417083615|ptt  |1|00|Delta seq 64251 prev sampleCount 0x0 sampleCount 0x149cdcf7
0417083615|ptt  |1|00|Delta sampleCount 345824503 expected 160
0417083618|ptt  |1|00|First rx payload est. : 90
0417083618|ptt  |1|00|Rx payload est. update : 20
0417083623|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Receive,event=ReceiveEOT, enter next state=Waiting
0417083623|ptt  |1|00|[PpsPttChanC]: pttChannelC::enterWaiting numTries == [2] 
0417083623|ptt  |2|00|[PpsPttC]:ncas2PpsCallHold Net(0x18f8f38) User(0x162a2e8)
0417083623|ptt  |2|00| [PpsPttC]::ppsProcMsg():MsgPpsCallHold channel 26
0417083625|ptt  |1|00|[PpsPttChanC]: PTT channel=26, current state=Waiting,event=Timeout, enter next state=Idle
0417083625|ptt  |2|00|[PpsPttC]: mediaSess2PpsCallRelease NetCall(0x18f8f38) UsrCall(0x162a2e8) Reason(2)
0417083625|ptt  |2|00| [PpsPttC]::ppsProcMsg(): MsgPpsCallDrop channel 26, reason 2

App Switching for Group Paging in Teams

UC Software 7.2.0 added support for Paging when running a compatible Poly CCX phone in Microsoft Teams mode.

NOTE: App Switching is available on all CCX 600 & CCX 505 , or CCX 400 & 500 phones Hardware Revision K or higher!

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As of UC Software 7.2.0, the following features work:

Exposes UC Software group paging via application switching so that it can be used in Teams and other native apps that don’t support paging.
Compatible to Algo, Viking and other vendors that use Poly paging protocol
The paging icon can be configured to open a specific channel or to provide a list of all the channels
Phones can be configured to send/receive or receive only

Use Cases

Emergency paging for building-wide emergencies
Group paging to specific groups
Support for traditional paging verticals like manufacturing, warehousing, retail, education and medical
Backwards compatibility to use existing Poly Phones with Teams >here<

Sending a Page

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Sending Page

Receiving a Page

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Receving a Page

Paging Group List

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Paging Group List

Open Channel

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Open Channel

App Switching for Group Paging Configurations

NOTE: Port 5002 is being used as the phones use port 5001 for People & Content!

App Switching with Paging + Full Page Channel List

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<web apps.android.appSwitcher.enabled="1"
apps.android.appSwitcher.Paging.enabled="1"
apps.android.appSwitcher.Paging.useDefaultChannel="0"
ptt.pageMode.enable="1"
ptt.port="5002" />

App Switching with Paging + Shortcut to Specific Channel (1-25)

SteffenBaierUK_10-1787146144722.png

<web apps.android.appSwitcher.enabled="1"
apps.android.appSwitcher.Paging.enabled="1"
apps.android.appSwitcher.Paging.useDefaultChannel="1"
ptt.pageMode.enable="1"
ptt.port="5002"
ptt.defaultChannel="1" />

Receive Only Configuration

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<web apps.android.appSwitcher.enabled="0"
apps.android.appSwitcher.Paging.enabled="0"
ptt.pageMode.enable="1"
ptt.port="5002"
ptt.defaultChannel="1"/>

ObiEdition VVX x50

similar to the Poly Obi >D230< example above paging can be enabled on ObiEdition VVX x50 phones when browsing to IP Phone > Phone Settings > Calling Features:

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The separate Page Groups can be found via IP Phone > Phone Settings > Page Group X

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Poly ROVE

The first task is to enable PTT Push to Talk on the handset:

Press the Menu Key
Select Settings
Scroll down or up to Push to Talk
Enable the feature
(There is no way to provision this feature)

Once Push to Talk is active you can speak and listen to messages using PTT similar to using a walkie-talkie.

Do one of the following:
- On your Rove 20 wireless handset, press and hold the Center navigation button.
- On your Rove 30 or Rove 40 handset, press and hold the Mute button on the left side of the handset.
Speak into the handset’s microphone. Release the button when done.
All the handsets that have enabled PTT will receive your message.

Poly ObiHai D230

Since ObiHai Software 7.1.0 the VVX D230 can also be part of GroupPaging.

To Set this up go to Voice Services > Page Groups > Page Group 1 or any other:

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Ensure the MulticastAddress is the same as on a Poly phone running UC Software (224.0.1.116)
The AudioCodec also needs to be the same (G722)
Polycast and PolyCastListen needs to be enabled
PolycastGroup which the Page Group wants to be part of needs to be selected

Then go to DECT Wireless and select the individual Handset and select the JoinPageGroup you want to be part of:

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NOTE:

Only 10 Page Groups are possible

VIa Star Code > Star Code Profile the number to send a Page can be defined

*01 for Page Group 1 Talk
*02 for Page Group 2 Talk

Logs:

In order to get logs for PTT please set the following logging levels:

System Management > Device Admin > Syslog and set the following:
Server <IP of your Syslog Server>
Level = 0

LevelDectTerm = Debug
LevelPageGroup = Debug
LevelCmbsObi = Debug
LevelCmbsDbg = On

Wireshark:

On a reboot / restart the Phone will leave the Multicast Group:

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reboot

Booting a Phone joins 224.0.1.116

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Joining

Transmitting PTT Paging on port 5001

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Paging

More detailed technical information can be found in the attached Polycom® UC Software PTT/Group Paging Audio Packet Format Engineering Advisory 70568 or Group_Paging_and_PTT_FP62327 documents