--- title: Polycom IP and VVX Configuration Guide (Classic) description: This article describes the configuration of most Polycom phones of VVX and IP series. The only difference would be the lack of some features or some extra features that don’t affect registration. 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[Deskphone Guides](https://support.mightycall.com/mightycall-classic?hsLang=en#deskphone-guides) # Polycom IP and VVX Configuration Guide (Classic) --- This article describes the configuration of most Polycom phones of VVX and IP series. The only difference would be the lack of some features or some extra features that don’t affect registration. --- Get your credentials here: **Profile \> My Forwarding Numbers \> Get connection details**. ### **Web GUI** → **Settings → Lines → Line 1 Identification** - **Display Name** = what will be displayed - **Address** = Extension - **Authentication User ID** = from the connection details - **Authentication Password** = from the connection details - **Label** = Extension - **Third Party Name** = Extension - **Number of Line Keys** = 4 (the actual number depends on the model) - **Calls per line** = 1 - **Ring Type** = that’s the sound of the ring. **IMPORTANT**: The Polycom phones have a known bug: only ring types 1-13 (except for the splash ringtone (#10) and 15 work correctly. ### Under **Outbound Proxy** - **Address** = Outbound Proxy (ccecsp.mightycall.com:16060, in most cases :16060 string is not needed, but it needs testing) - **Port** = 16060 - **Transport** = UDPOnly ### Under **Server 1** - **Address** = SIP Domain (ccecsp.mightycall.com:16060, in most cases :16060 string is not needed, but it needs testing) - **Port** = 16060 - **Transport** = UPDOnly - **Expires** = 300 - **Retry Timeout** = 0 - **Retry Maximum count** = 3 - **Line Seize timeout** = 30 **NOTE**: some models may prefer **Expires** set to **180** though **300** is deemed to be the correct one. ### Under **Message Center** ### **Subscription Address** = Actual Extension as in the Address field above ### **Call Back Mode** = Registration ### **Web GUI** → **Settings → Network → NAT** - **NAT Keep Alive** = 20 seconds ### **Web GUI** → **Settings → SIP → Local Settings** - **Local SIP Port** = typically, are used ports 16000, 16001, 16002, etc. Do not assign ports below port 1024. - **Calls Per Line Key** = Leave Default - **Type** = Private. If the phone is brand new, has never been configured yet or was hard reset, then proceed with the following step: ### **Web GUI** → **Settings → SIP** → **Local Settings** → **Digitmap** Enter the following to support **Ext Dialing** (Only enter the one that applies to your Ext numbering): • For **3-digit** extension: `011xxx.T|1[2-9]xx[2-9]xxxxxx|[2-9]xx[2-9]xxxxxx|[2- 9]xxxxxxT|0T|*xx.T|[2-9]11|1[01]x|xxxT|9xxxT|*99xxx` • For **4-digit** extension: `011xxx.T|1[2-9]xx[2-9]xxxxxx|[2-9]xx[2-9]xxxxxx|[2- 9]xxxxxxT|0T|*xx.T|911|[2-8]11T|xxxxT|*99xxxx` • For **5-digit** extension: `011xxx.T|1[2-9]xx[2-9]xxxxxx|[2-9]xx[2-9]xxxxxx|[2- 9]xxxxxxT|0T|*xx.T|911|[2-8]11T|xxxxxT|9xxxT|*99xxxxx` • For **6-digit** extension: `011xxx.T|1[2-9]xx[2-9]xxxxxx|[2-9]xx[2-9]xxxxxx|[2- 9]xxxxxxT|0T|*xx.T|911|[2-8]11T|xxxxxxT|9xxxT|*99xxxxxx` ### **Web GUI** → **Preferences → Date and Time** • Under **Display Format,** choose the format to display (default is 12 hours). • Under **Time Synchronization,** choose your time zone and the SNTP server of your choice. Though it doesn’t look like one, it is an important step, as sometimes registrations issues are merely caused by the timezones not synchronized. Don’t forget to click **Save** button on each page! After all these settings are good, the configuration is done. The phone will restart itself. Do not unplug the phone from the power while it's restarting. 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