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difference Between LL & ISDN
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Anónimo
13 de jun de 2012
LL is leased line and is primary link & isdn is used as a backup link and it do have 95 to 110 volt current in it.
difference Between LL & ISDN
Anónimo
LL is leased line and is primary link & isdn is used as a backup link and it do have 95 to 110 volt current in it.