I would like to use the cisco router 3640 (with T1 card) and cisco 2621 (with 2 x FXS card) to simulate the network & pstn environment to test the modem pass through, here is the detail connection:
Analog Phone (Ext: 451660) <--> [FXS] Cisco Router 2621 <---- LAN ----> Router 3640 [T1] <--> [T1] PBX (Panasonic) <--> Analog Phone (Ext: 454820, Modem)
The dial-peer on the router 2621 & 3640 is working as I can call in/out from PBX analog phone, and I was success to connect the PC (with modem port, and use the hyperterminal, atdt454820) from Outside PC (with modem port, Ext: 451660).
But I was fail to dial-out from PBX analog phone (454820) to 451660.
If you can get these debugs, I can take a deeper look into the failure:
debug voip ccapi inout
debug isdn q931
debug vpm sig
debug h225 asn1
debug h245 asn1
Collect these in the following manner:
Router(config)# service sequence Router(config)# service timestamps debug datetime msec Router(config)# logging buffered 10000000 7 Router(config)# no logging con Router(config)# no logging mon Router(config)# voice iec syslog Router# term len 0 Router# sh logg
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