GrandStream GXP 1610 Microphone doesn´t work with speaker

[cfiga]

Hi, when i answer a call by the speaker the other people don´t hear me, when I speak. Just happend when I active the speaker.

It can be something with the configuration or would be a factory defect?

Thanks!

[scottsip]

Make sure that the Microphone button is pressed when you are using handsfree. This model may or may not have true handsfree operation though.

Telephony Features
Hold, transfer, forward (unconditional/no-answer/busy), 3-way conferen- cing, call park/pickup, downloadable phone book (XML, LDAP, up to 1000
items), call waiting, call history (up to 200 records), off-hook auto dial, auto
answer, click-to-dial, flexible dial plan, hot desking, personalized music
ringtones, server redundancy & fail-over

[Telefonix]

Try setting this