SIP Flowroute to IP Office R5
SIP Trunking between Avaya IP Office R5 and Flowroute by
Kyle L Holladay, Sr R.I.P
In this example we will configure a SIP trunk between the Avaya IP Office and Flowroute using registration on LAN1 behind a firewall/NAT. Alternative configurations would include a static public IP or static IP behind a NAT/Firewall which will not be covered in this document.
NOTE: Flowroute claims T.38 version 0 support as of May 2009 however I have not been able to successfully negotiate any T.38 traffic at this point using version 0 at 9600bps and IP Office EI version 5.0 due to a requirement by Flowroute of information in the INVITE that the IP Office does not currently support. Thus far Flowroute’s technical support has been responsive and helpful. The call quality has been fantastic, far beyond what I have come to expect from other ITSP (over the Internet SIP providers).