You can try

export sip_from_header=${sip_from_header}

It's going to copy the full content of the header to the B leg

Em seg., 28 de fev. de 2022 às 17:34, Adiseshu Channasamudhram <csadi@hotmail.com> escreveu:

Hello FS Team,

How can I copy the From header in INVITE from incoming leg to the outgoing leg? 

Basically i have the carrier send the From header as below [not the clean way]

From: <sip:1234567890@1.19.10.3>;isup-oli=00;tag=3418741140365741_c2b08.2.4.1638259348522.0_6724417_21166610

I want to make sure i send out the oli in the outgoing INVITE From header. Note that in the incoming From , the oli is outside the uri

Thanks a lot in advance

Regards

Adises

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