Re: uac_replace_to() generates double angle brackets in To header when display name is used in kamailio 6.1.2

David Escartín via sr-users <[email protected]> Wed, 27 May 2026 09:26:55 +0000
Newsgroups gmane.comp.voip.ser
Message-ID <MN0PR20MB7550A4E4E522C715F4573459C6082@MN0PR20MB7550.namprd20.prod.outlook.com>
Hi,
I think I found the reason for the double angle brackets issue I reported.
>From what I can see, starting with Kamailio 6.1, uac_replace_to() seems to handle the To URI as a name-addr and automatically wraps the URI in angle brackets when needed.
So, for example, if the original header does not contain a display name:

To: sip:[email protected]


and I call something like:

uac_replace_to("sip:[email protected]");


Kamailio 6.1 generates the expected result:

To: <sip:[email protected]>


This means that we no longer need to force a display name before calling uac_replace_to() just to make the header use the <sip:...> format.
The double angle brackets I was seeing were caused by my own configuration in one of our AWS test machines. I had a workaround there that manually added < > around the URI for cases where the To header had no display name. With Kamailio 6.1, uac_replace_to() was then adding the brackets again, resulting in:

To: <<sip:[email protected]>>


Sorry for the noise, and thanks for the help.
Best regards,
David


David Escartín
Vice President Systems Programming
​bts.io  |  LinkedIn+34 976214883
Edificio Tecnológico Cines Goya. C. Josefa Amar y Borbón 10, Planta 3, Zaragoza

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