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In its operation instruction, the one of problems is stated as: "This product is unable to make calls when: – the handset batteries need recharging or have failed. – there is a power failure." Since the problem is not about the power, it may follow this condition: "If you cannot make calls, change this setting according to your telephone line service. The default setting is “Tone”. “Tone”: For tone dial service. “Pulse”: For rotary/pulse dial service. 1 [MENU]#120 2 Select the desired setting. 3 [SAVE] and [OFF]"

1. If it rings only once and goes to silence on the calling party end, there is a high resistance short on the line and it must be repaired. 2. Double check whether the ringer is on or not. 3. Check the weather when experiencing this problem. Electrical storms, heavy precipitation, excessively strong winds and other natural phenomenon can interfere with phone reception -- particularly if you're using a cordless phone. If this problem only happens when the weather is bad, try again when the storm has passed and/or switch to a corded phone.

Loud volume can come out of a Panasonic phone in a funny way, you can easily connect a public address speaker. This works well at pool cabanas and in factories. You can get one at Radio Shack for about $40.You'll be surprised how far voices will carry with no additional amplification.