The number you are calling may not support V.90 protocols. Some ISP’s (Internet Service Providers) have special numbers that you must call to connect to V.90. Contact your service provider and ask if the number you are calling supports V.90 connections to their service.
Check the maximum speed setting in the Modem Properties window. Go to
You may have other telephone devices connected to the phone line. To help your modem achieve the best connection possible, remove all extra devices connected to the telephone line when the modem is in use. This includes extension phones, answering machines, cordless phone bases, caller ID boxes, etc. Don’t just disconnect the phone cable from the units. Disconnect the phone cable from the wall. This reduces the load on your phone line and keeps signal attenuation to a minimum. Not having loose phone line cords coming from your phone line sockets will help reduce the possibility of interference being transmitted to the phone line.
Keep the length of your phone line cable to 10 feet or less. Don’t use an unusually long cable to connect to the phone line socket. If necessary, move the computer closer to the phone socket. Don’t lay your cabling close to an electrical appliance like a refrigerator or air conditioner unit. High current devices can transmit 60 cycle “hum” to your modem through the phone cord. This may cause frequent renegotiations or line discon- nects while the appliance is running.
If you are attempting to make a call from an office, are you using a direct outside line or are you using a PBX hookup? If you have to dial “9” to reach an outside number, you are using a PBX. Do not use this modem on a digital or PBX system. The modem is not compatible with these types of phones systems. Try using the line that is connected to a fax machine. Fax machines are normally connected to a dedicated line and not through the PBX.
Your phone line may not support a 56K connection.
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