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SIP Phone-->CUCM-->H.323-->PSTN Detailed call flow

prakashsatya
Level 1
Level 1

Hi ,

i need a brief call flow messages on below call flow scenario .

 

SIP Phone -->CUCM-->H.323-->PSTN

1.what are all the messages between SIP Phone and CUCM

2.messages between CUCM & H.323

3.messages between H.323 & PSTN 

 

i am being  more specific on first 2 parts .

Regards,

Satya 

1 Accepted Solution
3 Replies 3

Hi Sreekanth ,

Thanks for your kindly reply.
I am more specific on what messages from CUCM to H.323 , when CUCM receives call from a SIP Phone ?

Regards,
Satya