Nortel Networks CTA 500dm User Manual

74   Troubleshooting

 CTA 500

dm On Line Guide

 

P0873832  Issue 05

properties. Ensure ÒUse country and area codeÓ is deselected if 
using MP with two dial out numbers.

The PC receives bad data after a data call connection.
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Make sure that the CTA 500dm and the remote device are set to 
the same rate adaptation protocol. See 

 for more information.

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The remote device may be conÞgured for synchronous 
transmission. The CTA 500dm does not support synchronous 
operation.

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Make sure that the CTA 500dm and PC ßow control methods 
match. See

 for more information.

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Check the setting of the DTR pin. See 

Data calls are established but Internal applications time out.
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Check that the settings under TCP/IP properties match those of 
your ISP.

Data calls are made using MP and the connected pop-up says 
connected@128,000 bit/s but only one channel is active.
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Only one channel may be available at the destination (for 
instance if the ISP is busy).

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Check that you are subscribing to an MP capable service.

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Only one channel is available in the outgoing line pool.

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You are active on a voice call. If the voice call ends, a 128 kbit/s 
session will be established.