# Intercom Interoperability Manual

Session Initiation Protocol (SIP) is the protocol that underpins VOIP communications. SIP is standardized, so most open SIP servers should support full functionality (video, audio, and unlocking) with a Verkada TD52.

## Validated SIP Servers

See the table below for the on-premise and cloud solutions that we validated. For providers not listed here, contact [Verkada Support](/command/need-help/contact-verkada-support.md) for assistance.

|              |                 |             |            |            |           |                                                                                                                                       |
| ------------ | --------------- | ----------- | ---------- | ---------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------- |
| **Provider** | **Type**        | **Version** | **Video?** | **Audio?** | **DTMF?** | **Setup Guide**                                                                                                                       |
| Cisco        | CUCM            | 8 & 14      | ✅          | ✅          | ✅         | [Cisco Setup](/intercom/configuration/integrate-verkada-intercoms-with-sip/sip-integration-cisco-unified-cm.md)                       |
| Cisco        | Webex           | 46.4        | ✅          | ✅          | ✅         | [Webex Setup](/intercom/configuration/integrate-verkada-intercoms-with-sip/webex-configuration-for-verkada-intercoms.md)              |
| Freepbx      | Freepbx         | 15          | ✅          | ✅          | ✅         | [Freepbx Setup](/intercom/configuration/integrate-verkada-intercoms-with-sip/freepbx-configuration-for-verkada-intercoms.md)          |
| Ringcentral  | Ringcentral     | 24.1.5      |            | ✅          | ✅         | [Ringcentral Setup](/intercom/configuration/integrate-verkada-intercoms-with-sip/ring-central-configuration-for-verkada-intercoms.md) |
| Cybertwice   | Microsoft Teams | 1.5.11      | ✅          | ✅          | ✅         | [Teams Setup](/intercom/configuration/intercom-teams-integration.md)                                                                  |

## Validated SIP Phones

See the table below for the SIP phones we validated. For phones not listed here, contact [Verkada Support](/command/need-help/contact-verkada-support.md) for assistance.

|              |           |            |            |          |                   |
| ------------ | --------- | ---------- | ---------- | -------- | ----------------- |
| **Provider** | **Model** | **Video?** | **Audio?** | **DTMF** | **Server Tested** |
| Cisco        | 8865      | ✅          | ✅          | ✅        | CUCM 8            |
| Cisco        | 8811      |            | ✅          | ✅        | CUCM 14           |
| Yealink      | VP59      | ✅          | ✅          | ✅        | Freepbx 15        |
| Grandstream  | GXV3480   | ✅          | ✅          | ✅        | Freepbx 15        |

## Desk Station Speakers

See the table below for the speakers we validated if you need to raise the volume of your desk station. For speakers not listed here, contact [Verkada Support](/command/need-help/contact-verkada-support.md) for assistance.

|              |                |                  |
| ------------ | -------------- | ---------------- |
| **Provider** | **Model**      | **Connectivity** |
| Anker        | Powerconf S330 | USB              |
| Emeet        | m2             | BT, AUX          |
| Jabra        | Speak 510 UC   | BT               |

{% hint style="warning" %}
For both USB and AUX speakers, you will need to use the buttons on the desk station. The answer/hangup buttons on the speaker will not work for calls.
{% endhint %}

{% hint style="warning" %}
If you are using Guided Access Mode on your desk station, some features may not work as expected. If you run into issues, disable Guided Access Mode.
{% endhint %}


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