No dial tone for PSTN calls

[V.Naveen Kumar]

Need some help. I am not able hear dial tone when phone is in off hook but calls are  able to connect.

Call Manager version : 8.6

Cisco IP Phone : 6945

I have checked cluster wide parameter : disable altering process indicator is false only.

I have checked in route pattern also provide outside dialtone is enabled.

I have checked in gateway also there is no issue in conf.

help me out..!!!

[Suresh Subramanian]

- is it happening for only one phone?

- is it happening only for PSTN calls or internal too?

- when the receiver is offhook and if it still receives the calls from other phones, it could be issue with hook-switch not releasing properly.

- when the phone goes off hook, it will notify the cucm and the cucm will provide the dial-tone to the phone.

- so pls check the ccm traces as well on what exactly happening between cucm and phone.

~ SS

[V.Naveen Kumar]

its happening for all IP phone in cluster

both internal n PSTN

i tried with speaker as well as i checked with handset also.

in traces its shows it giving dial tone to the call but still i m not able to get dial tone.

[Karthik Sivaram]

hi Naveen,

So there is no dial tone for internal calls also.. correct?

what firmware is the 6945 phone running ?? Can you upgrade the firmware?

Regards,

Karthik

[V.Naveen Kumar]

hi

its already upgraded firmware..

SCCP 6945 9.3.1.3 version