[SR-Users] sip forward with manipulations

[christian (cx labs)]

Hi,

I'm trying to set up a Kamailio server as a proxy to forward SIP messages
between two trunks, where I manipulate only the INVITE in the following
manner:

incoming call:
INVITE +4969123456 at server1

outgoing call:
round robin to
INVITE user at 4969123456-sip-server2a
INVITE user at 4969123456-sip-server2b
INVITE user at 4969123456-sip-server2c

Can anyone point me in the right direction? Both SIP trunks are IP
registration only. Also, I am aware how strange this is, but the upstream
service has decided to interpret SIP in a novel way.

Cheers,
Chris
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