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Configures user presence status (Available, Away, Chat, DND, Custom, Unavailable) via the web GUI.
Allows users to set their presence status through the user portal's Basic Information section.
Enables setting presence status using feature codes and voice prompts on the phone.
Configures Virtual Multi-Purpose Keys (VMPKs) on phones to monitor extension presence status.
Details configuring extension boards and physical MPKs for presence watcher functionality.
This document describes the SIP Presence feature for Grandstream UCM6xxx Series devices, including UCM620x, UCM630x, UCM630xA series, and UCM6510. The SIP Presence feature enhances user monitoring capabilities on the UCM6xxx and extends the utility of Multi-Purpose Keys (MPKs) on supported endpoints.
The primary function of SIP Presence is to provide users with more informative status updates about coworker phone extensions beyond the basic Busy Lamp Field (BLF) functionality. While BLF indicates line connectivity and calling status (Idle, Ringing, Connected), SIP Presence offers a broader view of an extension's general state, such as Available, Busy, or Do Not Disturb (DND). This allows users to publish their own presence state and subscribe to the presence status of other extensions, receiving notifications about any status changes.
The SIP Presence feature offers several ways for users to set and monitor presence statuses:
Setting Presence Status via Admin Web Interface: Administrators or users with appropriate permissions can access the UCM Web GUI by navigating to "Extension/Trunk -> Extensions -> Features" to manage presence statuses. The system provides six predefined statuses:
When a user selects a status, a NOTIFY message is sent to all subscribed presence watchers, announcing the new status. The default status is 'Available'. A new column has been added to the main Extensions page in the Admin Web Interface, simplifying the viewing of all extensions' Presence Statuses.
Setting Presence Status via User Portal: Users can also log in to their individual user portal to view and edit their presence status. This feature is accessible by navigating to "Basic Information -> Extensions -> Features" within the user portal. The same six predefined and custom statuses are available for selection.
Setting Presence Status via Feature Code: For users without web access, the Presence feature can be managed using a feature code. By dialing the default feature code, *48 (which can be customized in "Call Features -> Feature Codes" on the Web GUI), users receive voice prompts with options to choose their desired presence status. The options are typically presented in a specific order:
Monitoring Presence Status using VMPKs (Virtual Multi-Purpose Keys): Supported Grandstream GXP phones can use VMPKs to monitor the presence status of other SIP entities. Prerequisites include a GXP phone with presence watcher support (refer to the "SUPPORTED DEVICES" section) and a registered SIP account on the same UCM6xxx as the monitored extension. The configuration involves accessing the phone's web UI at "Settings -> Programmable Keys -> Virtual Multi-Purpose Keys." Users can select "Presence Watcher" as the mode for a VPK and enter the extension number to monitor. Once configured, the phone's VMPK will display the monitored extension's status with an icon and an LED indicator. Different presence statuses are indicated by distinct icons on the LCD, varying LED colors, and label colors (on GXP21XX, GRP261x, GRP2624/GRP2634 phones). For example:
Monitoring Presence Status using Extension Boards and MPKs (Physical Multi-Purpose Keys): Users can also configure presence watchers on physical MPKs on phones like GXP2130, GXP2160, and GXP1628, or on connected Extension Boards (e.g., GXP2200Ext for GXP2140 and GXP2170). The configuration path is "Settings -> Programmable Keys -> Physical Multi-Purpose Keys" or "Settings -> Extension Boards" on the phone's web UI. When using physical MPKs, the Presence Watcher feature has a more limited LED indication compared to VMPKs:
| Recording | Yes |
|---|---|
| Web Interface | Yes |
| Voicemail | Yes |
| Call Center Features | Yes |
| Series | UCM6 |
| Max Users | Up to 500 |
| Max SIP Accounts | Up to 500 |
| FXS Ports | 0 (with expansion modules) |
| FXO Ports | 0 (with expansion modules) |
| Codecs Supported | G.711, G.722, G.723, G.726, G.729, GSM, iLBC, OPUS |
| Network Interfaces | Dual Gigabit Ethernet ports |
| Power Supply | 100-240V AC, 50-60Hz |
| Operating Temperature | 0°C to 40°C |
| Humidity | 10% to 90% non-condensing |
| Model | UCM6 series |











