Hi,

 

What is your setup? By MS RTC do you mean Office Communicator?

If you are using MS OC, do you use SER in between (to convert SIP UDP2TCP)? Please share some more details J

 

Cheers,

Ohad

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Asterisk
Sent: Wednesday, June 14, 2006 9:43 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [Asterisk-Users] SIP, Microsoft RTC, and Originate problem

 

It seems that Microsoft RTC has some problems with originated calls from Asterisk. If I execute Manager API originate application, with SIP channel as parameter, the Microsoft RTC softphone will start to ring after a couple of seconds delay, but nothing more happens after when I answer – there is no second call to an extension.

 

When I looked through the sip debug, I noticed that Microsoft RTC fails to properly respond to INVITE messages (I have attached the sip debug). Asterisk has to retransmit INVITE message for 6 times and even then the RTC still doesn't respond in a proper time. However, if I do direct call to that problematic Microsoft RTC based softphone, everything works fine, eventhough very same INVITE messages are being transmited to it from Asterisk.

 

Does anyone have any ideas for a workaround?

 

Regards,

Alex

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