I have a 2821 router with DSP and digital modem module installed. with vwic and e1 nm module. Every thing works ok when I have my E1 lines configured as Voice lines but I cant hear any modem answerback tone from the digital modems when the E1 line is configured for incoming modem. I have checked the E1 layer two and three status and every thing is ok. Connection is made only to be timed out after a whilesince there is no modem music. I thought there might be something wrong with the chasis so I tested the E1 line with a 2811 router, but the same thing happened.
The lines come in through fiber from the telco and there is a Huawei channelizer in between my router and the telco. there are other E1 lines from the channelizer that go to the local PBX system and they are working perfectly.
The strange thing is as I said before, I have tested the digital modemand also the NM in another site and they worked fine.
I have thought perhaps thee was something else wrong with the chasis and I tested another chasis and yet no luck. I have no idea about this one. the hardware should work since they have worked someplace else. The telco is oksince every thing is coming in ok and we have Voice on this router. :|
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
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In this session you can learn more about Layer 3 multicast and the best
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