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SIP INVITE Message Header "Contact"

Mark Shepard

August 31, 2021 23:32

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Hi,

S Series.

Could someone please help with which item in Trunk programing determines the output for the SIP INVITE, Message Header, "Contact" value?

> Contact: <sip:02xxxxxxxx@xxx.xxx.xxx.xxx:5060>

Which part of programming does it get 02xxxxxxxx from??

 

Thanks mark

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4 comments

• 0
  
  Eric Jiang September 01, 2021 01:30

  Hi Mark, I think it is the from user of the sip trunk setting. Why do you need to modify this number?

• 0
  
  Mark Shepard September 01, 2021 01:54

  I need to keep SIP INVITE, Message Header "Contact" and "P-Asserted-ID" fixed as the Register Trunk Username number.

  I need to present the "Original Caller ID" in the SIP INVITE, Message Header "From"

• 0
  
  Eric Jiang September 01, 2021 06:22

  try to configure like below:

  

• 0
  
  Mark Shepard September 03, 2021 02:47

  Hi,

  I will be testing that on a Register Trunk.

  Sorry, I messed up a bit..... This one is a Peer Trunk, it doesn't have that P Assert option.

   

  Thanks

  mark