[Asterisk-Users] Cisco 7940 and multiple simultaneous calls

[Henry Devito]

Hate to bring up an old thread.  I just configured a 7960 with multiple 
lines appearing.  Each defined the same, but the buttons don't seem to roll 
over.  What else do I have to define to do this.

Henry
----- Original Message ----- 
From: "Chris Wade" <clwade at sparco.com>
To: "C F" <shmaltz at gmail.com>; "Asterisk Users Mailing List - Non-Commercial 
Discussion" <asterisk-users at lists.digium.com>
Sent: Wednesday, March 23, 2005 1:12 PM
Subject: Re: [Asterisk-Users] Cisco 7940 and multiple simultaneous calls


>C F wrote:
>>>These phones simply realize that the account information for both lines
>>>is the same and assumes (possibly incorrectly) that it should accept
>>>calls to that 'account' on all lines with that account.
>>
>>
>> "possibly incorrectly" I think you are incorrect, this has the *best*
>> result, it will just ring the second line when a second call comes in.
>>
>>
>
> I'm just saying that the phone should be 'dumb' and just do what it is 
> told to do instead of assuming anything.  However, in the case of the 
> cisco phones, there isn't a config option of which way it should work - 
> assuming it is, after all, the phone doing all this.  Either way, I agree 
> that this is the *best* solution if you really need that many calls.
>
>>>This disables the phones ability to handle two incoming calls per line
>>>button however.
>>
>>
>> Maybe, I use it with disabling call waiting, so I dont realy know if
>> this is true, in any case besides for disabling or not disabling the
>> second call on the same line, it will also rollover to the next
>> button, but this is the desired result in most cases, other wise why
>> don't you use a different sip account for the next button, if you are
>> using the same sip account, then you want the second call to go to the
>> next button (unless you want 12 calls on a Cisco 7960?).
>>
>>
>
> If my memory serves me correctly, what I described is indeed the way it 
> works.  As for your last statement/question, some people do want 12 
> incoming calls on the 7960.
>
>>>My work-around, and I'm sure many others too, was to create a -a and -b
>>>'account' for each 'account' and then do dialplan rollover to make the
>>>7940 accept two calls per line button, or 4 simultaneous incoming calls.
>>>  The 7960 could accept 12 simultaneous incoming calls this way using a
>>>-a through a -f 'account'.
>>
>>
>> Correct, but it's usualy much better and easier to have the phone
>> handle the rollover, who needs more than 6 simultanewous calls? whats
>> wrong with call parking if you do need more than 6?
>>
>>
>
> It's up to the individual installation as to which method is better. I've 
> setup both before and even the individual station user typically had a 
> preference of which way it worked.  I've yet to see somebody actually need 
> even 6, but who knows.  And nothings wrong with parking, just didn't bring 
> it up cause it was somewhat OT.
>
>>>-Chris
>>>
>>>PS: Haven't checked this, but the phone may actually register per 'line'
>>>meaning it would register multiple times, but since ALL the details of
>>>the register are the same, * just treats it as a re-register and neither
>>>* nor the phone know the difference, so both 'work together' to produce
>>>this effect.
>>
>>
>> It's possible, since it comes from the same IP address asterisk knows
>> that it's the same and doesn't give any errors (I never tried with sip
>> debug, so I don't know), but I think it's actualy the phone that does
>> it, in any case it doesn't matter, as long as it works.
>>
>>
>
> Same here, haven't done a debug to see what is actually happening, but it 
> just works :)
>
> -Chris
>
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