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kbelian
Beginner

ISUP FAR on PGW 9.6(1)

Hi all,

I have a question regarding FAR. Does PGW 9.6(1) support ISUP FAR (Facility access request) on the SS7 trunks?

I am specifically looking for info on ISUP FAR to be forwarded to ISDN PRI So basically PGW should be able to recieve the FAR and forward it.

From the doucments of 9.6(1) I couldn't find specifc info regarding this.

Also from my experience with ISDN PRI I know that PGW is not good at forwarding certain faciliy  requests (there are many bugs related to PRI IEs).

Also from the 9.7 and 9.8 documents I see that now PGW can send FAR on behalf of a SIP endpoint and you can control the behavior using the FACILITY result in a resultset.  But again no specific info whether PGW can accept and process FAR as expected. Also in relation to Release Link
Trunk (RLT) Support, it is stated that this feature is supported on ANSI trunk, while I am interested in ITU trunks.

Any clarification will be much appreciated.

rgrds

3 REPLIES 3
scpage
Beginner

Hi,

I double checked the ITU Q.699 Compliance matrix for PGW. The PGW is neither compliant with Table 65 (FAR recv'd from ISUP) or Table 66 (Facility with UUS Invoke recv'd from ISDN).

PGW is also not compliant with Table 127 and 129 of Q.699.

thanks for the informative answer,