[Asterisk-Users] picking a channel bank
I have never had to pick out a channel bank before but I'd like to use one with the Digium T-1 card to hook 8 analog CO lines to an * PBX. Is there a reference somewhere describing and comparing channel banks (old and new)? Can modern channel banks handle translating all the new analog signaling features into a T-1 format? For example, can it interpret the 1200 baud FSK caller ID stream that is inserted between the first and second ring and translate that into digital caller ID delivery out the RJ-45 port? How about: 1) caller ID 2) caller ID call waiting 3) distinctive rings 4) call waiting 5) analog 3-way calling (flash hook) 6) analog call transfer (3-way call w/hang up) 7) stutter dial-tone (message waiting) 8) anything else I've missed? /** Ken Alker [EMAIL PROTECTED]ham radio: KA6SDU Impulse Internet Services http://www.impulse.net Santa Barbara, San Luis Obispo, Ventura, Los Angeles, Orange T-3 / T-1 / ADSL / ISDN / 56K / web hosting / wireless / co-lo ***/ ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] picking a channel bank
Is there a reference somewhere describing and comparing channel banks (old and new)? not comprehensive but a start http://voip-info.org/wiki-Asterisk+Hardware Can modern channel banks handle translating all the new analog signaling features into a T-1 format? For example, can it interpret the 1200 baud FSK caller ID stream that is inserted between the first and second ring and translate that into digital caller ID delivery out the RJ-45 port? yes that an issue you need to watch out for How about: 1) caller ID 2) caller ID call waiting yea this you need to verify 3) distinctive rings 4) call waiting 5) analog 3-way calling (flash hook) 6) analog call transfer (3-way call w/hang up) 7) stutter dial-tone (message waiting) 4-7 are mostly handled 8) anything else I've missed? 1) far end disconnect supervision on fxo cards 2) echo echo echo echo echo some like the ADIT 600 have a feature called dynamic impedance matching which realy seems to fix this cause echo at the souce 3) RF interferance I have had my local AM radio station play on my FXO cards 4) Flexibility how do you expand in groups of 2,4,8,12 or are they fixed at 24 ports (fxs or fxo) 5) Support Some vendors if buying in the after market will plain not support used gear some will only provide support usually = in value to what you pay for the channel bank even if its only a manual you want 6) Price :) If buying new this gear is way over priced, eg a new ADIT 600 with 24fxo 2fxs i got quoted $4500us ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
