Most equipment works fine with Xfinity Voice, but there are a few products that do not.

The following equipment is known to have a high probability of errors with Xfinity Voice service:

AT&T 5830
AT&T E2727B 2.4 GHz Dual Handset Answering System with Caller ID and Call Waiting
GE 21018GE3
GE 21028GE3 (with answering machine)
GE 25838GE3-A
Memorex MPH3388
Motorola MD700 Series
Motorola MD751
Motorola MD761 (with answering machine)
MD70
Uniden DXAI5188-2 (with answering machine)
- CIDCW (caller ID with call waiting) functions properly
- User may hear additional tones and signals after the call waiting indicator tone
- This is normal for some Uniden phones
Uniden EXI5160
- CIDCW (caller ID with call waiting) functions properly
- User may hear additional tones and signals after the call waiting indicator tone
- This is normal for some Uniden phones
Uniden DXI 386-2
- CIDCW (caller ID with call waiting) functions properly
- User may hear additional tones and signals after the call waiting indicator tone
- This is normal for some Uniden phones

Hitachi Omni Fax HF18TME

Note: There may be other equipment brands or models that are incompatible with the Xfinity Voice service.