| Check
List |
Explanation |
| Check your modem complies with ITU-T
Recommendations V.90 or V.34 (28.8, 33.6kbit/s). Even new modems may require a software
upgrade to V.90 or V.34. |
The V.34 recommendation replaced V.fast and
V.90 replaced K56Flex and x2. Modems manufactured before the V.34 and V.90 recommendations
were set, may require a software upgrade to achieve maximum line speeds. Contact your
modem supplier or ISP, or check the modem manufacturer’s Internet site. |
| Consider replacing older modems. |
Older modems compliant with ITU-T
Recommendations like V.22bis, V32 and V.32bis, may cause call drop-outs from failed
initialisation/connect attempts. |
| Newer V.34 and V.90 modems use pre-emphasis
to improve performance. |
Newer V.34 and V.90 modems, with line speeds
up to 28.8, 33.6, and 52kbit/s, use pre-emphasis to compensate for the effect of distance
from your Customer Access Module*. These modems may provide more reliable connection,
higher line speeds, lower error rates and higher throughput speeds. |