I have a problem with my cisco mobile 8.0 for iphone via vpn when i call to avaya. the avaya phone is ringing but i can't hear voice from, likewise Avaya phone. I use 5502 ASA with Version 7.2(3) and call manager version is 126.96.36.19900-2.
the topology is :
internet - ASA VPN & firewall - Switch Edge - Server Farm - Call Manager and Avaya.
when my cisco mobile for iphone connect wireless (not throgh ASA), i can call avaya and hear voice from it. when my cisco mobile connect vpn, call to cisco phone (SCCP) is no problem. vpn client use IPSEC protocol. the traffic from outside - inside an inside - outside already any any. i think it's sip to sip problem through VPN.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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