Installation guide

vi RN-001029-00, Rev 03, Release 2.1
Contents
Other Interoperability Features.................................................................................. 109
DNS Caching .......................................................................................................... 109
Symmetric UDP Signaling Support .........................................................................109
Configuring Symmetric UDP Signaling Using Configuration Files.................... 110
Ability to Remove UserAgent and Server SIP Headers .......................................... 111
Configuring UserAgent/Server SIP Headers .................................................... 111
Issues Resolved on Series 5i Phones in Release 2.1, Build 2145 .......................... 112
Contacting Aastra Telecom Support .......................................................................... 115
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