Hello, This template was initially setup to resolved the following issues listed in the release notes of version 3.1-3.2.1 SEE Listed Release note 3.2 for updates -CSCsx86872 -CSCta94933 Need to be able to use a loopback IP address to utilize gateway delivery for the vm module (only listed for XO carrier) -CSCtr84220 After applying configuration changes from the Telephony > Users and Extensions > Voicemail window, CCA reconfigured CUE DTMF to RFC 2833 (rtp-nte). However, existing IOS/CME dial-peers were still configured with sip-notify. This mismatch caused DTMF to fail for calls to CUE. -CSCty78255 When modifying SIP Trunk service providers, the voice class codec settings are reapply and port transformation is affected -SCua00673 Incoming calls fail to internal SIP endpoints, reentering of proxy keys are needed -I also recall the initial SIP Default template (Toll Fraud Secure) was advised against because it dropped the sip trunk audio due to abnormal port transformation and the need for listing additional gateway IPs to ensure two way audio. ------- Many of the above issues have since been resolved which is why the template may not be as useful as it initially was. I would still recommend following the guideline listed above.
... View more