[asterisk-users] call transfer to asterik.. asterisk as an end point

2007-05-10 Thread Zahid Mehmood
Hello All.

 I am having some trouble with call transfers when asterisk is the 2nd 
party called and I hope to benefit from your experience.



I want to use asterisk for call park/pickup and have configured openser
to relay calls made to  ruri 700-720 to asterisk running on
localhost:5069





Call flow:



phone A calls  phone B  (both phones are polycom)



Phone B answers



then phone b user presses transfer and dials 700



asterisk plays back 701 as the parking lot location



phone B user presses transfer again.

   at this time phone b is not disconnected from asterisk system

   phone A is also connected to asterisk and hears 702 as the parking
lot location (as if asterisk places the user at priority 1 for that

context)





 From phone C calling 702 will connect phone C to phone A.





This was a specific example but this transfer problem is not limited to
call park only. It happens any time asterisk is the second party called
in call transfer.



Thanks in advance for your help.



--

Zahid
 





On May 8, 2007, at 1:56 PM, Christian Schlatter wrote:



I think I found out why this doesn't work as expected. After phone 1 receives 
REFER from phone 2, it sends a new INVITE to the asterisk server. This INVITE 
includes a Replaces: header that tells the receiver (asterisk) to replace an 
existing SIP dialog with the new one.

RFC 3891 The SIP Replaces Header, Section 3 UAS Behavior, defines:

the UA attempts to accept the new INVITE, reassign the user interface and 
other resources of the matched dialog to the new INVITE, and shut down the 
replaced dialog.

But your SIP trace shows that asterisk doesn't shut down the replaced dialog 
(by sending a BYE), which is the reason why phone 2 does not get disconnected 
after hitting transfer the second time.


Instead of creating a new call park slot (702) when phone 1 sends the Replaces: 
INVITE to asterisk, asterisk should be intelligent enough to figure out that 
this INVITE actually replaces the existing SIP dialog with phone 2. And 
asterisk should not create a new park slot 702 but directly put phone 1 on hold 
at park slot 701 and send a BYE to phone 2.

Although asterisk supports the Replaces: header when used e.g. as a gateway, I 
have some doubts that the call park/pickup implementation does so too. 
Especially since it was designed to be used in PBX mode where asterisk acts 
as B2BUA for all involved call legs.

Maybe this should be opened as a new feature/bug request on the asterisk bug 
tracker. Or maybe there is a asterisk setting that controls this behavior, I'm 
not really an asterisk expert myself ;-)

-- 
The fact that an opinion has been widely held is no evidence that it is not 
utterly absurd; indeed, in view of the silliness of the majority of mankind, a 
widespread belief is more often likely to be foolish than sensible. -Bertrand 
Russell





 

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[Asterisk-Users] unable to register using SIP

2006-01-31 Thread Zahid Mehmood
Sorry for the duplicate post but I have hit a brick wall trying to get
this to work.  Is there anyone who can help me?  

I am having trouble trying to register with a voip
provider using sip.  I am able to connect using xlite softphone. in
xlite i use

domain/realm:   providerdomain.com
sip proxy:  host.providerdomain.com:9000

this difference in domain and sip proxy host is whats causing problem
for me.

section from sip.conf

[provider-out]
type=peer
secret=nn
username=55439
fromuser=55439
fromdomain=providerdomain.com
host=host.providerdomain.com
port=9000
nat=No
canreinvite=no

when trying to make a call with xlite, i see that the to part in sip
messages is using @xyz.provider.com where as in asterisk it uses
host.xyz.provider.com  (sip proxy host, NOT the domain/realm host).

Another thing i notice is that if i use nat=yes then asterisk doesn't
seem to be using the port=9000 and uses default 5060 for remote host.

What am i doing wrong or missing?  Can someone point me in the right
direction?  What will be the register = line for this?  Also can
someone provide info on [authentication] in sip.conf?

any help will be greatly appreciated.

thanks. 


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[Asterisk-Users] sip registration question

2006-01-28 Thread Zahid Mehmood
I am a newbie and am having trouble trying to register with a voip
provider using sip.  I am able to connect using xlite softphone. in
xlite i use 

domain/realm:   providerdomain.com
sip proxy:  host.providerdomain.com:9000

this difference in domain and sip proxy host is whats causing problem
for me.

section from sip.conf

[provider-out]
type=peer
secret=nn
username=55439
fromuser=55439
fromdomain=providerdomain.com
host=host.providerdomain.com
port=9000
nat=No
canreinvite=no

when trying to make a call with xlite, i see that the to part in sip
messages is using @xyz.provider.com where as in asterisk it uses
host.xyz.provider.com  (sip proxy host, NOT the domain/realm host).

Another thing i notice is that if i use nat=yes then asterisk doesn't
seem to be using the port=9000 and uses default 5060 for remote host.

What am i doing wrong or missing?  Can someone point me in the right
direction?  What will be the register = line for this?  Also can
someone provide info on [authentication] in sip.conf?

any help will be greatly appreciated.

thanks.

 


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[Asterisk-Users] sip registration question

2006-01-28 Thread Zahid Mehmood
I am a newbie and am having trouble trying to register with a voip
provider using sip.  I am able to connect using xlite softphone. in
xlite i use 

domain/realm:   providerdomain.com
sip proxy:  host.providerdomain.com:9000

this difference in domain and sip proxy host is whats causing problem
for me.

section from sip.conf

[provider-out]
type=peer
secret=nn
username=55439
fromuser=55439
fromdomain=providerdomain.com
host=host.providerdomain.com
port=9000
nat=No
canreinvite=no

when trying to make a call with xlite, i see that the to part in sip
messages is using @xyz.provider.com where as in asterisk it uses
host.xyz.provider.com  (sip proxy host, NOT the domain/realm host).

Another thing i notice is that if i use nat=yes then asterisk doesn't
seem to be using the port=9000 and uses default 5060 for remote host.

What am i doing wrong or missing?  Can someone point me in the right
direction?  What will be the register = line for this?  Also can
someone provide info on [authentication] in sip.conf?

any help will be greatly appreciated.

thanks.

 


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[Asterisk-Users] need help configuring dlink dvg-1120M

2004-09-05 Thread Zahid Mehmood
Hi,
   I have a dlink dvg-1120M (mgcp) box that i will like to use with 
asterisk.   Is it possible?  has anyone done that? 

Here's a link to the product page at dlink. 
http://support.dlink.com/products/view.asp?productid=DVG%2D1120M

Also, does anyone  has or know where to get the firmware for Dlink 
DVG-1120S (sip model)?

thanks.

--
Zahid

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