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New Member

E1 R2 digital dtmf and Start Dial Supervision

Which Start Dial Supervision methods does a router support on a E1 R2 digital using dtmf? (wink start, inmediate start, other)

2 REPLIES
Silver

Re: E1 R2 digital dtmf and Start Dial Supervision

E1R2 provides answer and disconnect supervsion by the CAS signalling in timeslot 16. The call states are as follows :

idle

seize

seize ack

answer

clear backwards or clear forward

idle

R2 doesn't use the conventional states of onhook or offhook that E&M wink or immediate uses.

Most R2 implementations use MF tones instead of DTMF tones as well.

Have a look here for more information on E1R2 -

http://www.cisco.com/warp/public/788/signalling/e1_r2_sig.html

http://www.cisco.com/warp/public/788/signalling/e1r2config.html

New Member

Re: E1 R2 digital dtmf and Start Dial Supervision

Sr

Recently I integrate a PBX and a Router using R2 signaling (digital + dtmF). The PBX had wink start, inmediate start as start dialing or end dialing signaling.

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