[Asterisk-Users] Asterisk and Cisco IP Phones

[Julien Goodwin]

On Mon, Dec 06, 2004 at 07:43:24AM -0600, Rich Adamson arranged a set of bits into the following:
> I don't think its an argument as much as it is folks expressing opinions
> without giving you a clue why they've formed that opinion. Here's another
> one.
> 
> SCCP is a cisco proprietary protocol that some folks have partially 
> reverse engineered, writing * code to support those basic functions
> that have been reverse engineered. Not all of Cisco's SCCP functions
> have been reverse engineered. If you compare functionality of what
Actually one you get past registration of the phone (which can sometimes
be pretty odd) we can support almost everything. The problem is that we
don't have the function code written yet to support call forwarding or
ad-hoc contrences (and similar), this generally doesn't take very long
to write but has to be solidly tested due to all the protocol
differences between the phones.
There are also the phones that only chan_sccp supports due to cisco's
stupidity, 7920, 7935, 7960+7914, and hopefully soon the 7970.
[Talking about chan_sccp here]

> Cisco is doing with Call Manager to that implemented in *, you'll see 
> differences. If the functions that have been implemented meet _your_ 
> needs, then use it. (Read: work in progress.)
Otherwise you can let us know what's missing for you and we'll see what
we can do.

> On the other hand, SIP is an established open RFC standard. However,
> not all SIP standards are implemented in *, and not all SIP phone 
> manufacturers implement all published standards. (Read: work in progress.)
> But, there are significantly more folks working towards expanding
> SIP support then there are folks reverse engineering SCCP.
But there are also all the many extensions to SIP that the various
vendors have (eg the hint stuff)

> So, _you_ have to evaluate SIP vs SCCP and compare the two to whatever
> your requirements happen to be, and chose a protocol that you are
> comfortable addresses the majority of your requirements. No one can
> do that for you. Remember, opinions are like mouths (or substitute
> whatever anatomy part you'd like), everyone has one.
> 
> ------------------------
> > Guys, obviously there is an argument about SIP vs SCCP when it comes to
> > using Cisco IP Phones with Asterisk. I am not really sure which way to go.
> > Probably I will go with SIP now unless you guys do recommend not using it.
> > 
> > Walid 
> > 
> > -----Original Message-----
> > Let me CLARIFY for those that might not get what I ment.. DO NOT RECOMMEND
> > SCCP unless you have actually installed and used it.  Its crap... 
What are your problems with SCCP? Submit bug reports, they do get fixed.

> > SIP is what you want if you use a cisco phone with asterisk.
> > 
> > bkw
> > 
> > > 
> > > Pfft ya right if you want half assed supported channel drivers.  Use SIP.
> > > 
> > > bkw
> > > 
> > > > No you don't have to use SIP.   You can also use the SCCP channel on *
> > > > with Cisco phones.
> > > >
> > > >
> > > >
> > > >
> > > > I want to start using Asterisk with Cisco IP Phones 7960 / 7940/ and
> > > 7905.
> > > >
> > > > Any info or help is appreciated.
> > > >
> > > >
> > > >
> > > > I know I'll have to use SIP but if I want to use the phones off site 
> > > > meaning
> > > >
> > > > from my home for example, how can this be done?
> > > >
> > > > Also, regarding external lines what are the options for Asterisk?
> > > >
> > > >
> 
> 
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