[SIPForum-discussion] Regarding SIP stack

[Naresh Parmar]

Many ISPs provide SIP service. Here in NA, Telus is one of the SIP
service providers. Actually the underlying technology is transparent
to the end user be i SIP or H.323 or something else. For a good start,
i suggest you to visit www.iptel.org, they provide an open source SIP
express router and that would clarify many things.

cheers,
naresh

On 7/21/05, Ponrajdurai <ponrajit at yahoo.com> wrote:
> Hi,
>  
>     can anyone tell me about the SIP stack used by companies like Cisco,
> Avaya, Ping tel , Nortel.
>  
>     Can anyone tell me about SIP Service provider. I have only heard about
> internet Service provider.
>  
> with regards
> Ponrajadurai.S
> 
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