About Hesham Mohamed El Sayed

Hesham Mohamed El Sayed · 09-25-2022

Dear Experts Please i need help on how to copy the IP Address from the incoming INVITE via header to the SDP attributes for the below INVITE i need using sip-profiles to copy the public IP in via and use it in SDP attributes INVITE sip:113@iscmx.d...

Hesham Mohamed El Sayed · 09-22-2022

Hello Everyone i have my CUBE configured as End to End proxy server ,, and when i try to make a call , I receive 503 User---> CUBE ----> PBX 1) User calls 2) Cube forward to PBX 3) when PBX 407 Require Authenticate , the cube doesn't return the messa...

Hesham Mohamed El Sayed · 09-22-2022

Hi Experts Please i need help how to change the sip invite SDP from private addresses to public address below INVITE was received from a UAC to CUBE , and for CUBE to be able to communicate with UAC RTP i need to modify the invite SDP with the Publi...

Hesham Mohamed El Sayed · 09-21-2022

HI everyone this is so exhausting , my CUBE is behind a NAT and i want to copy the FROM ( public IP of caller ) and use it in via header to send SIP traffic back , i am unable to modify the RECIEVED INVITE at all ( as below ), only the SEND replies f...

Hesham Mohamed El Sayed · 09-07-2022

I have a quick question i wanna use BE6K hardware for adding a small size CUCM subscriber in a branch , Main Enterprise CUCM cluster is in different location head office My question here am i forced to use on BE6K a pre defined CUCM costumed for BE6...

Hesham Mohamed El Sayed · 09-25-2022

Yes my cube is behind firewall and i need to update the received invite sdp with the public ip of the sender which can be found in via header

Hesham Mohamed El Sayed · 09-23-2022

At first you didn't know that you can have CUBE as a proxy server Edge to Edge and that the design is wrong and there should be a SIP trunk , and now when you saw Cisco diagram you came back that i was not clear For sure they will make calls after re...

Hesham Mohamed El Sayed · 09-23-2022

concept is quite common

Hesham Mohamed El Sayed · 09-23-2022

I might be a beginner in this forum but i am actually a double CCIE , What i am trying to achieve is a valid design by Cisco and like million on online sip proxy that relay registrations and calls and integrate different voice network and no they do...

Hesham Mohamed El Sayed · 09-22-2022

The website didn't accept Wireshark files .. not supported type to upload so i compressed everything … don't worry bro nothing bad in there 2 txt files and the pcap file of wireshark

Member Since	‎08-29-2013 02:03 PM
Date Last Visited	‎09-28-2022 12:01 AM
Posts	57
Total Helpful Votes Received	5

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INVITE SDP Manipulation

SIP Proxy end to end unexpected behaviour

SIP INVITE SDP Manipulation

CUBE never return back SIP messages to sender

BE6K and CUCM version

Re: SIP INVITE SDP Manipulation

Re: SIP Proxy end to end unexpected behaviour

Re: SIP Proxy end to end unexpected behaviour

Re: SIP Proxy end to end unexpected behaviour

Re: SIP Proxy end to end unexpected behaviour