call transfer

[user25]

hi every body!
in our company we have md110 bc9, we have some analog external line to PSTN "TL11", I've tried to size 2 external lines, call 2 pstn subscribers and when i made a transfer (external to external) it didn't work!! my directory number has a traf=03151515, in the adc the digit D7=3, public lines belong to the same group "0" in the matrix i've set tcmas:a=0,b=0,con=t;
but still not working!! however when i've transfered an external line to local subscriber it works!

please give me some help!

 

[lc135]

Hi,

It is not advisable to do a trunk to trunk transfer if you are using tlp11, it will held-up both trunk even the caller already hang-up.