I have to implement the following scenario:
The Calls from PSTN received on h323 gateway with 1E1 ISDN PRI must be redirect to 2E1 ISDN PRI connected to PBX Ericsson to the extensions that belong to Ericsson, and viceversa when a call is made must go first to 2E1 ISDN PRI on h323 gateway and then redirect to 1E1 ISDN PRI to PSTN.
The 97% of the extensions belong to the PBX Ericsson and the rest of extension belong to the CallManager 5.x
The Equipment is:
CallManager 5.X with 2 IP PHONES
h323 gateway with two E1 ISDN PRI
PBX Ericsson with 50 extensiones.
has anybody ever worked on simular scenario?
I know that I must work with voice translations but I dont have it clear sending calles between the two E1 ISDN PRI.
Any help will be apreciated.
Looks like the PBX is sending overlap -
*Feb 22 01:17:34.956: ISDN Se0/0/1:15 Q931: RX <- SETUP pd = 8 callref = 0x1777
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA18396
Preferred, Channel 22
Progress Ind i = 0x8183 - Origination address is non-ISDN
Calling Party Number i = 0x0181, '1025'
Called Party Number i = 0x81, '64' ********
There is only the access code of '64' and the sending complete flag is not set in the setup message.
Add the command 'isdn overlap-recieving' under interface serial 0/0/1:15 to allow the gateway to buffer the recieved digits.