Cisco 887 router

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Hi, I'm sorry if this is not the right place to place my question

I'm trying to buy a Cisco 887 router to connect my office to the adsl2/2+
and in the future to vsdl line.
I'm little puzzled between  the Cisco887VA and the Cisco887VAM.
What are the difference between POTS and Basic telephone service?
Aren't they the same things?


Re: Cisco 887 router
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Well, it looks like not many persons are left to answer...

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I can't answer that particular thing, it appears to depend on country.
Better ask locally what system is used.

I do have a 887 and was considering to buy a 887VA for VDSL but in the
end I decided to get a Draytek 2860n+.   It can do most things the
Cisco can do at 1/5 of the price, and as I was buying it as a consumer
I also preferred the consumer service.
(On the Draytek you get warranty and software updates, on the Cisco these
cost even extra on the already much higher price)

But of course there may be special things that the Cisco can do and
the Draytek can't.   I required lots of features including VPN, policy
routing, VLAN, multiple internal networks, IPv6, dual-band wireless
with multiple SSID, fallback WAN connection and the Draytek does it all.

Re: Cisco 887 router
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I don't think that is a differentiation, probably just bad rewording.  

Further on in the datasheet you have the listing

Cisco 887 VDSL/ADSL over POTS Multi-mode Router
Cisco 887 VDSL/ADSL Annex M over POTS Multi-mode Router

So, I think ADSL Annex M is the key difference. ITU G.992.5 Annex M
lets the ISP provision a faster uplink channel (with corresponding
decrease in downlink channel speed), depending on distance from DSLAM.

Doug McIntyre

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