To proffesional developer we have some issue?

General Help
1

to proffesional developer we have some issue ?

wh have server freepbx and tow card sangoma
1- Sngoma card gsm 4 channel
2- Sangoma Card PSTN 4Channel
every thing it’s success

but we have Complex problem as next >

when call any customer not listen any thing but ringing in all case as next .

if customers hangup
if customer out of service
if customer busy
if Puts a song on line tone when listening

Iam not heared anything just ringing and redial from another sim automatic without know it just ringing

this is case only when call any customer via GSM Card

when call any customer via PSTN No any issue its good working I heared any thing.

when login any connection as chanspy i heared any thing PSTN and GSM

and connected with support of sangoma told me no problem .

and connected with support of freepbx told me no problem.

2

to proffesional developer we have some issue ?

wh have server freepbx and tow card sangoma
1- Sngoma card gsm 4 channel
2- Sangoma Card PSTN 4Channel
every thing it’s success

but we have Complex problem as next >

when call any customer not listen any thing but ringing in all case as next .

if customers hangup
if customer out of service
if customer busy
if Puts a song on line tone when listening

Iam not heared anything just ringing and redial from another sim automatic without know it just ringing

this is case only when call any customer via GSM Card

when call any customer via PSTN No any issue its good working I heared any thing.

when login any connection as chanspy i heared any thing PSTN and GSM

and connected with support of sangoma told me no problem .

and connected with support of freepbx told me no problem.