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configure & troubleshoot anyconnect
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Enthusiast

SIP Delayed Offer - 7940 Phone

Hi All,

We are facing the issue in 7940 Phone between Cisco & Nortel via SIP Trunk ( Delyed offer). When 7940 Phone made a call to any nortel phone we are facing oneway rtp issue.[ Nortel user unable to hear Cisco User Voice]

From the streaming statistics understood that rtp fllowing between these endpoints ( Sening & Receving packets ). Once we put the call in hold & resume we able to hear the Voice.

Other model phones like 69XX,7942 are working fine without issue. has anyone faced the issue ?

Thanks in Advance...

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Rising star

SIP Delayed Offer - 7940 Phone

Hello Sriram,

How is the 7940 registered as? SIP or SCCP? what is the CUCM version?

could you please provide the CCM(sip) traces for a working and nonworking call?

//Suresh Please rate all the useful posts.
Enthusiast

SIP Delayed Offer - 7940 Phone

Hi Suresh,

Phone are registred as SCCP. CUCM version 9.1 . I will shared the CUCM logs shortly

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