Alistair Cunningham wrote: > There are SS7 solutions for Asterisk but we would not recommend > them as 3rd party gateways are more mature.
Not just that, but as there is no MGCP or H.248/MEGACO support, it is impossible to control intermachine trunks (bearers) over a separate ISUP link that is not connected to the physical host into which the bearer channels go. Thus, the limit of how many IMTs can be taken is the limit of how many T1s can physically be plugged into a single Asterisk host. Because Asterisk does not separate the signaling and bearer plane in this manner, this makes Asterisk SS7 support relatively useless in the contexts in which it is most often asked about. It is only good for low-density private SS7 access, and I can't see a compelling reason to use it over PRI. Also, Asterisk SS7 only supports ISUP - no TCAP, so no LNP, CNAM dips, etc. In the US, that's going to make it completely useless for telco interconnection. How useless? About 95% useless, as >= 95% of the rate centers in the country are now under number pooling, not just 10,000-block NANPA assignments. The LRN is virtually required to route in this situation. Plus any direct end-office trunks or sector tandem connections and, well, yeah. -- Alex -- Alex Balashov - Principal Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- AstriCon 2009 - October 13 - 15 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-biz mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-biz
