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UCCX Agents complain they hear CrossTalk but its all SIP/IP!

The customer has a Verizon Business SIP Trunk, calls from Telco come into SIP CUBE 3845 running 12.4(24)T and then SIP-SIP to CallManager 7.0(2) to UCCX 7.0(1)SR1 where Cisco Agent Desktop to 7942 (G711)(SCCP42.8-4-3S).

What our UCCX 7.0(1) Agents complaining of is what we called CrossTalk (bleedover) in the old analog days….given this is all IP I don't see how we can have any cross talk. That maybe Verizon at backend switch is experiencing cross talk?

Note From Supervisor;

I was logged into UCCX Agent Desktop as Ready and received a call and started helping the customer, about 2 minutes later, both myself and the customer whom called me in the queue heard our hold music in the background, then they heard a co-worker Jon answering a call, "Thanks for call Express Parts Look Up, how can I help you?"


John Bishop

Technical Services Warranty & Parts Lead

New Member

Re: UCCX Agents complain they hear CrossTalk but its all SIP/IP!

Any luck with this issue? I have a similar issue with SIP calls.

New Member

Jason,Oddly enough, I have a


Oddly enough, I have a client that is experiencing this with their newly deployed UCCx 10.5 environment.  Client has inbound SIP trunks into a 3945 ISR G2.  Ikhlaas will be reaching out to you about this.


Thank you,


New Member

Curious to know if either of

Curious to know if either of you found the answer to this issue?  We have a customer that reported

a similar issue, Crosstalk over SIP.




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