i have this error and for resolve i dont have card type command"You can potentially encounter the following symptoms or error messages when configuring IP Communications High-Density Digital Voice/Fax Network Module:% No DSP resources available to co...

in new ccnp book i didnt see any thing about isdn and some objecteven in ccna exam i didnt see any question about isdn and if i remember about frame-relaywhat's your opinion?do you think isdn and frame-relay expire?is there any place for this technol...

hican anyone help me to get a demo version of cisco worki want to know what it works and ...thankshappy new year