Frequently asked questions (FAQs)
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Product support: 4-Line Expandable Corded Phone System with Speakerphone

Corded 4-line telephone with base speakerphone and expandable to 16 stations
Resources
Frequently asked questions
- I am using my VoIP box to set up my wireless home phone and other network devices. All devices work normally except my phone, which has no dial tone/ displays Line in Use with busy tone/ poor sound quality. What should I do?
- Why does the phone emit a double ring when I try to intercom another station?
- Why doesn’t my telephone ring when I receive calls?
- Why doesn’t Hold release when I return to the call on a system phone?
- What other 4-line models are compatible with this model?
- Why doesn’t my phone ring while I am on another line?
- I cannot hear on the handset. What can I do?
- I’m hearing humming or buzzing sounds. What’s wrong with my phone?
- Why is LOW BATT displayed on the base?
- Can I CALL FORWARD to external phone number?
Or view basic troubleshooting tips:
- My caller ID announce (voice announce CID) isn’t easy to understand at times.
- My telephone product is suddenly acting strange or stopped working altogether. What can I do?
- Who is Charlie Johnson and why is his name displayed on my phone?
- My answering system plays my greeting to callers but will not record messages. Why?
- I subscribe to a non-traditional telephone service (for example: magicJack, Skype or Windows Live Call), and my phone is not working correctly.
- My battery pack does not last very long between charges. I am charging the handset more frequently. What should I do?
- I want to dial a phone number found in my Caller ID log, but the number is not displayed correctly. What can I do?
- Why am I not receiving Caller ID?
- Why won’t my answering system record messages?
- How can I reduce static and noise on my phone?
Or view our service and order support tips:
- How do I get status on a product or accessory I ordered?
- How do I find a battery for my AT&T product?
- I want to expand my AT&T multi-handset product, how do I find the handset I need?
- How do I obtain support on my AT&T product that is no longer under warranty?
- How do I obtain warranty support on my AT&T product?