A simple setup - c2801 box with Channelized E1 WIC + E1/ISDN PRI line. Task is pretty simple as well - to configure router to accept incoming ISDN data calls (dial-up backup for data links). I have done similar things in past, but have no experience with ISR platforms in this context. Question is - at the moment I am trying to add E1 timeslots to 'pri-group' with 'pri-group timeslots 1-31' command, Im getting an error message:
% Not enough DSP resources available to configure pri-group on controller E1 0/2/0
% The remaining dsp resources are enough for 0 time slots.
% For current codec complexity, 2 extra dsp(s) are required to create this voice port.
Rest of controller's configuration is:
controller E1 0/2/0
.. and telco says line is fine. Somehow I trust them, as line was working a couple days ago.
As far as I understand - router tries to allocate resources to those voice ports, but there are not enough resources to do it. Thing is - I dont need any voice capabilities, it will be used for data transmission only.
Ideas on how to proceed? Basicaly - any replies will be highly appreciated :)