The newest trend is to go all-IP using SIP TRUNKING to connect your business office to the Telephony Service Provider network. A SIP Trunk allows the company to replace the traditional TDM fixed lines (PRI, BRI etc) with just a normal IP … SIP UA Configuration — sip-ua authentication username 5552222100 password 075A701E1D5E415447425B no remote-party-id retry invite 2 retry register 10 retry options 0 timers connect 100 registrar dns: mycompany.

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SIP Trunking With Call Manager Express | Free Cisco Training …