[Asterisk-Users] ADSI phone vs. IP phone

[daryl at introspect.net]

> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com 
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of 
> Dustin Goodwin
> Sent: Monday, January 19, 2004 11:18 AM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] ADSI phone vs. IP phone
> 
> 
> Why wouldn't you just use your existing Ethernet 
> infrastructure putting 
> the  IP phones inline between the wall jack and the PC? There are a 
> number of IP phones that have builtin switch/hub that allows 
> the PC to 
> daisy chain off the IP phone.

Probably because it's well known that these setups are prone to failure
of either the PC's connection, the phone's connection, or degredation of
one/both.  It also breaks switch envirenments where spanning-tree
portfast is enabled (not as big of a deal if the deployment is in
concert with the infrastructure group, as it should be).

Vendors should NEVER have implemented this functionality into phones
unless it was working under all conditions.  Personal experience shows
that it is most definitely not on Cisco and 3Com products.  Others have
told me their stories with other manufacturer's equipment.  None of it
was good.

It's not a production-stable way to deploy phones.  Period.

Daryl G. Jurbala
BMPC Network Operations
Tel (NY): +1 917 477 0468 x235
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