[c-nsp] Cisco 2621 and Asterisk

[Azher Amin]

Hi,

I am trying to configure Cisco 2621 (2 FXS + 2FXO) with Asterisk PBX. 
Cisco IOS is 12.2. I have done many configurations but somehow they are 
not working. Asterisk requires authentication while in this IOS release 
under sip-ua  , username authentication option is not available. Can 
someone plz share his experience on how to configure the whole setup.

Regards
-Azher

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