We've had a user complain that they were in a call, and the call got disconnected and the phone showed "High Volume Traffic".
Googling indicates that the High Volume Traffic message would normally occur when trying to place the call (due to CUCM server being too busy), rather than mid call (when CUCM servers aren't really involved in the call)
We get this complaint occasionally. Not enough to warrant a TAC call, but enough for it to bug me, at least.
If this is in case of a PSTN call made by a phone user, then I dont think this error has anything to do with CUCM being overloaded unless the call was dropped after it was placed on hold etc. As the RTP establishes between phone & gateway, CUCM will be consulted only for user features.
I'd suspect gateway router's over utilization & To be on the safer side, I'd also ensure up-to-date firmware on phones.
Do you mean, gateway CPU over-load ? Unlikely, but not impossible. Our main gateways are 3845s, filled with ISDN-30 trunks. However, this is a quiet time of year, and utilisation is quite low (30-40%).
To be on the safer side, I'd also ensure up-to-date firmware on phones.
Phones are generally on 9.2.1, with 9.2.3 slowly making it's way out there.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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