[asterisk-users] How does Ast use IP vs FQDN for SIP header fields

[Telium Technical Support]

We are working with an ISP that needs Asterisk to place a FQDN name in the
SIP 'FROM' and 'INVITE' fields - where Asterisk is currently using an IP
address.  A SIP trace shows the following from my Asterisk box:

 

INVITE sip:62351155 at 1.1.1.1 SIP/2.0

Via: SIP/2.0/UDP 2.2.2.2:5060;branch=z9hG4bK49f1d30e

From: "MYNAM" <sip:+12345678 at 2.2.2.2>;tag=as3d9596b0

 

We tried adding hosts file entries mapping these IP's to hostname's but
Asterisk didn't use them.  Can someone suggest how to do this?

 

 

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