Cisco Cisco IOS Software Release 12.2(13)ZH

The following sections lists the open caveats for the Cisco IOS Release 12.2(13)ZH.

The Cisco IOS Release 12.2(13)ZH does not support BRI-S/T v2 cards in the Cisco 1700 routers.

The Siemens DSLAM and the WIC-1ADSL-I-DG report different speeds.

When WIC-1ADSL-I-DG trains to the Siemens DSLAM, the bit-rate shown on the CPE will always be 
64 Kb more in the downstream direction and 32 Kb more in the upstream direction than what is 
configured on the DSLAM port. This additional bandwidth is used for a proprietary overhead channel 
that can be used only by a Siemens chipset–based CPE.

Downstream throughput is low for small packets.

When a VXML document with volume control functionality is invoked on a dial-peer, the output 
attenuation does not change as expected.

Voice port fails to go on-hook after handling the CNG event when VoiceXML application is playing the 
recorded audio.

Use the audio file recorded using G711ulaw codec.

The following sections lists the resolved caveats for the Cisco IOS Release 12.2(13)ZH.

When Caller ID function is enabled, FXO port answers the call approximately 8 sec after the first ring.

Change default WIC-1-Symmetrical High-Speed Digital Subscriber Line (SHDSL) 
signal-to-noise ratio (SNR) startup margin.