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Community Member

E1R2 - Plz help!!!

I have a brand new customer who uses E1R2 at Macau to accept incoming calls on a Cisco 2851 VG. Unfortunately, I have tried everything but whenever i made an incoming call from PSTN, all i get is a 'fast-busy' tone.

I have tried to search for Cisco CCO but all the debug commands are for 5300 / 5400 and the 'debug cas' & 'debug csm voice' does not work on the 2851.

Is there any show & debug commands i could use to debug E1R2 on a 2851??

And here is the config:-

card type e1 0 1

voice-card 0


dsp services dspfarm

controller E1 0/1/0

framing NO-CRC4

ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani

cas-custom 0

release-guard-time 100

seizure-ack-time 50

voice-port 0/1/0:0

dial-peer voice 100 pots

incoming called-number .


port 0/1/0:0

Would greatly appreciated your help and time on this.

Kind Regards,


Hall of Fame Super Gold

Re: E1R2 - Plz help!!!

To begin with, is the controller up and free of errors ?

Also, likely you should try first settings from a country set.

The debug command is "vpm signal".

Community Member

Re: E1R2 - Plz help!!!

Yes, the controller is completely free of errors.

Macau is not in one of the country options, hence haven't choose any.

Community Member

Re: E1R2 - Plz help!!!

as per your configuration where is your dial-peer voip,

Can you send me the out put of debug voice ccapi inout debug isdn q931.

Hall of Fame Super Gold

Re: E1R2 - Plz help!!!

zeshan, "isdn q931" doesn't apply to E1 R2.

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