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Compatibility

Whozz Calling? units work with either analog phone lines or digital/VoIP lines converted to analog by a device installed at a customer premises. The Vertex unit is compatible with Hosted or managed VoIP systems using VoIP phones. The diagrams and chart below should help you determine the compatibly of your phone system to our products. Contact us for more information regarding your specific requirements.

Analog Converted VoIP

Many varieties of VoIP service incorporate a VoIP-to-Analog conversion unit so that their customers do not need to replace existing telephony equipment. Whozz Calling? units function properly with these conversion devices. Analog conversion devices are also supplied by fiber optic phone providers (FiOS) and cable phone service providers (Comcast, Charter).

Analog_VoIP.png

Whozz Calling? units work with these systems since the VoIP or Digital phone service is converted to analog service at the customer’s location.

Hosted VoIP

If you use VoIP phones connected to your local area network (LAN), then you have either Hosted or Managed VoIP. These VoIP phones are usually provided by your service provider. Some of the major brands of VoIP phones are Cisco, Polycom, Aastra, Grandstream, and Yealink.

Whozz Calling? units will not work properly with this type of service unless analog terminal adaptors (ATAs) are connected and provisioned properly; and call queuing is provided and configured correctly by the service provider. The Vertex - Caller ID for VoIP unit is designed to work seamlessly with Hosted VoIP. It is also compatible with most managed VoIP architectures.

Managed_VoIP.png

Compatibility Chart

Depending on the type of phone line and the particular unit installed, it may be compatible with only inbound Caller ID, or both inbound and outbound Caller ID.

Phone Service Type

Inbound
Caller ID

Outbound
Caller ID

Unit
Compatible

Standard Local Loop (1FB)

Yes

Yes

Basic or Deluxe

Analog Centrex Yes

Yes

Basic or Deluxe

Ground Start

Yes

Yes

Basic or Deluxe

Fiber or Cable
(FiOS, Comcast, Charter)

Yes

Yes

Basic or Deluxe

T1 w/ Analog Converter
(Both Voice and IP on single T1)

Yes

Yes

Basic or Deluxe

VoIP – Analog Converted
(Vonage, many others)

Yes

Yes

Basic or Deluxe

VoIP – Hosted
(with ATAs & call queuing)

Yes

No

Basic only

VoIP – Hosted
(ATAs not required)

Yes Yes Vertex

VoIP – Managed
(SIP Trunk, Asterisk, ISDN w/ SIP Host)

Yes Yes Vertex

ISDN PRI, Dedicated T1
(no analog conversion or SIP Host)

Not Compatible Not Compatible Not Compatible

Whozz Calling? units require an analog Caller ID signal be present on the phone line. This signal can be sent directly from the phone company or a digital/VoIP-to-analog converter can generate analog Caller ID signals. Analog Caller ID will not pass through telephone switches to extension lines. Units will not operate if directly connected to digital phone lines.

Vertex units require an Ethernet connection such that all VoIP phone traffic of interest flows through the two monitoring ports. Any offsite VoIP phones will not register