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Reply To: audio problem with cisco5300


hello Aushman ,

Thank you for your help.
the originate gateway is with
IOS Version 12.1(3a)T1,we can not upgrade it to higher ver, since it is limited by the size of flash memory(8MB).
We made a call successfully on originate cisco (using csim command),it can ring the destination(mobile phone). But when we try from phone–pstn-
pbx-originate cisco–IP,it failed to ring the destination.
We have tried to extend wait_release time on both side(cisco) but still nothing
changed. IOS Upgrading is the only solution ?