1
Introducon
About the C520 Conference Phone
The C520 SIP Conference phone is designed for use in oce sengs. It consists of the
phone and two wireless microphones, enabling parcipants in a meeng room to deliver
clear conversaon during a confernce call.
Expand calling opons with other devices
The C520 also has Bluetooth and DECT connecvity, giving you opons for how and where
you can make and answer calls with the conference phone. Aer pairing Bluetooth devices
with the C520, you can use the conference phone in parallel with your cell phone, or use a
Bluetooth headset for a private conversaon.
For large meeng rooms, you can extend the range of the C520 with up to three Snom
C52-SP DECT Expansion Speakerphones.
The following accessories or devices can be paired with the C520:
• Bluetooth-equipped cell phones and/or headsets
A total of four Bluetooth devices can be paired, but not all of them can be
connected and acve. Two cell phones, or one cell phone and one headset, or one
headset can be connected at a me.
• Snom C52-SP SIP DECT Expansion Speakerphone (up to three)
• Wireless DECT headset
You can use connected devices in the following situaons:
• Enable all conference aendees to talk to your party from anywhere in a large
meeng room using C52-SP DECT Expansion Speakerphones.
• Answer calls to your connected cell phone on the C520 or on a C52-SP Wireless
Speakerphone also connected to the C520.
• Make calls on your cell line using the C520.
• Answer incoming calls to the C520 or to your paired cell phone using a DECT
cordless headset.
• Transfer SIP call audio from the C520 to a Bluetooth headset when you need to
talk privately aer a conference.